Moshe Feinstein

Rabbi Moshe Feinstein

Rabbi Moshe Feinstein was the president of the Agudath Harabbonim of the United States and Canada, chairman of the Moetzes Gedolei HaTorah in the United States, Rosh Yeshiva of Mesivta Tiferes Yerushalayim in New York, and one of the greatest poskim of his generation. He maintained a connection with the Rebbe in his battles for Torah integrity and engaged in Torah discussions with him.

Life History

Born on 7th of Adar 5655 in the Uzda district near Minsk, then Russia, to Rabbi David Feinstein, rabbi of the chassidic community in the town and a descendant of the Vilna Gaon, and his mother Feya Gittel, a descendant of the Shelah.

In his childhood, he learned from his father, and by age ten, he was already proficient in three tractates of Gemara dealing with monetary laws - Bava Kamma, Bava Metzia, and Bava Basra. Before age thirteen, he began studying at the Etz Chaim Yeshiva in Slutsk under Rabbi Isser Zalman Meltzer. In 5670 (1910), at age fifteen, he traveled with a group of the yeshiva's best students to establish a yeshiva in Shklov under Rabbi Pesach Pruskin (author of "Chiddushei Rabbi Pesach MiKobrin"). Rabbi Feinstein considered Rabbi Pruskin his primary teacher throughout his life. By age seventeen, he was already proficient in the entire Talmud, and by age nineteen, he was well-versed in all four sections of the Shulchan Aruch with their commentaries.

In 5676 (1916), he was appointed as rabbi in his hometown, Uzda. After World War I, he was heavily involved in permitting agunos who remained after the war. In 5681 (1921), he was appointed as rabbi and head of the beis din in Luban, where he served until 5697 (1937) when he arrived in the United States. Shortly after arriving in America, he was offered the position of Rosh Yeshiva at Mesivta Tiferes Yerushalayim in New York. He accepted the position and served in this role for forty-nine years until his passing.

Rabbi Feinstein was considered a first-rank posek and one of the greatest Roshei Yeshiva of his time. His Torah greatness was primarily known through his many halachic responsa collected in his works "Igros Moshe." He was revered by gedolei Yisroel and countless Jews. The Admor Rabbi Simcha Bunim Alter (the "Lev Simcha") of Ger said that he was the "Chofetz Chaim" of the generation. His acquaintances testified that he went through the Pri Megadim (one of the commentators on the Shulchan Aruch) about one hundred and fifty times. His son-in-law, Rabbi Tendler, testified that he would learn seven pages of Gemara daily, completing the entire Talmud each year. He would also study two chapters of Tanach daily, the weekly parsha with Ramban and Or HaChaim HaKadosh commentaries, and Midrash Rabbah. Along with his capabilities, Rabbi Feinstein was a pleasant and humble person who cared for his students.

In Adar II 5729 (1969), he was appointed president of the Agudath Harabbonim in the United States. In this capacity, he was one of the greatest fighters against the Reform and Conservative movements. In 5743 (1983), the Agudath Harabbonim in the United States, together with Orthodox Jewish circles, began writing a Torah scroll in Rabbi Feinstein's merit.

At the end of his life, he suffered from a serious illness and passed away on 13th of Adar II 5746 (1986) at age ninety. Hundreds of thousands of Jews, led by gedolei Yisroel, attended his funeral. The funeral procession began in the United States and continued to Har HaMenuchos in Jerusalem where he was buried.

Connections with Chabad

Rabbi Feinstein's paternal great-grandmother, Rebbetzin Rachel, was born in the city of Liozna, the city of the Alter Rebbe. In her childhood, she displayed rare talents and a great love for Torah study. Her father approached the Alter Rebbe, who recommended allowing her to learn in the 'cheder' in a corner, together with the boys. During that same period, the Tzemach Tzedek, who was then a child, studied in that same 'cheder'.

During the period of persecution by the Yevsektsia against Judaism in the Soviet Union, Rabbi Mordechai Feinstein, brother of Rabbi Moshe Feinstein and rabbi of Shklov, approached the Frierdiker Rebbe requesting assistance for his community in building a new mikvah. A similar letter was sent to the Frierdiker Rebbe from the Starobin community (Rabbi Moshe Feinstein's town) in the name of "the Rabbi of Starobin [Rabbi David Feinstein, Rabbi Moshe's father] and the gabbaim."

Rabbi Feinstein participated in a chassidic farbrengen held at Rabbi Nissan Telushkin's home on the holiday of Yud Tes Kislev in 1934.

When the Frierdiker Rebbe and the Rebbe arrived in the United States, Rabbi Feinstein met with the Rebbe through the "Adino" society, where Rabbi Feinstein also gave Torah lectures to yeshiva students. Subsequently, the Rebbe and Rabbi Feinstein began corresponding on various topics, including the issue being discussed at that time among gedolei Yisroel: whether it was permissible for a Jew to board an Israeli ship mid-week when its journey would continue on Shabbos. The Rebbe, whose opinion was that one should not travel on such a ship, addressed Rabbi Feinstein in one of his letters requesting that the Agudas Harabbonim intervene in the matter. On another occasion, Rabbi Feinstein wrote to the Rebbe regarding Lithuanian rabbis who claimed there was no obligation to study pnimiyus haTorah. The Rebbe responded that this was contrary to the opinion of the Vilna Gaon himself and others.

During the initial period of establishing the central Yeshivas Tomchei Tmimim in the Rebbe's courtyard, there was consideration to appoint him as Rosh Yeshiva, though this did not ultimately materialize.

In 1969, the Rebbe spoke against abandoning Jewish neighborhoods and selling houses to non-Jews. Rabbi Feinstein issued a letter announcing his support of the Rebbe's words.

Meeting with the Rebbe - Nissan 1974

On the evening following Rosh Chodesh Nissan 1974, Rav Feinstein came to visit the Rebbe and had a yechidus that lasted over an hour, together with Rav Simcha Elberg and Rav Tzvi Hirsch Gansburg. Due to the lengthy yechidus, the Rebbe's Maariv minyan was delayed until 10:30. After the conversation ended, the Rebbe accompanied Rav Feinstein on his way out. Upon leaving, Rav Feinstein told his close associates about his amazement at the Rebbe's Torah depth and shared that they discussed, among other things, the halacha that "a chasan is exempt from reciting Shema." Rav Elberg, who was present at the yechidus, also spoke about Rav Feinstein's good relations and connections with Chabad and his great friendship with the Rebbe.

Who is a Jew Law - 1974-1975

In 1974, the Rebbe was heavily involved in the matter of correcting the Who is a Jew law. Consequently, Rav Feinstein issued a letter demanding that the National Religious Party leadership not agree to compromises and various amendments that were inconsistent with halacha. In 1975, the Rebbe sent him a delegation of Chabad chassidic scholars who had emigrated from Russia. The Rebbe asked the delegation to describe to him the severe assimilation situation in Russia and therefore requested that the Agudas Harabbonim, which he headed at that time, act on the matter of amending the law. The rabbis in the Agudah accepted the matter, and Rav Feinstein said, on behalf of the Agudah, that his opinion on the matter aligned with the Rebbe's and promised that Agudas Harabbonim would do everything in its power to amend the law. The meeting and impressions from it were reported extensively in the Pardes journal from that period. Shortly after, Rav Feinstein initiated a large gathering in Boro Park, where the rabbis expressed their protest against the law and demanded to fix it "according to halacha." Later, Rav Feinstein wrote two letters - in one he sharply criticized those opposing the law's amendment, and in the second, he demanded to correct the law's text and add the word "kehalacha" (according to halacha).

Personal Matters - 1976-1980

In personal matters as well, Rav Feinstein received from the Rebbe. On Purim 1976, the Rebbe spoke about every boy from bar mitzvah age beginning to put on Rabbeinu Tam tefillin. Rav Tzvi Hirsch Spritzer, who had a prior connection with Rav Feinstein, decided to approach him and discuss the matter. Rav Feinstein showed interest in the Rebbe's words and told him that indeed until age eighteen he had put on Rabbeinu Tam tefillin and stopped for various reasons. Now, after hearing the Rebbe's words, he was interested in starting to put them on again, provided that the Rebbe would choose the sofer who would write the tefillin and that it would be in the "Beis Yosef" script. When the Rebbe heard about this, he requested through his secretary, Rav Chaim Mordechai Aizik Hodakov, that the sofer Rav Eliezer Zirkind go the next day to Rav Feinstein's home to see exactly which tefillin he wanted. Rav Zirkind went to Rav Feinstein's home, who instructed him regarding the parshiyos and requested to see them before they were inserted into the batim. On Erev Shabbos Parshas Shekalim 1980, he began putting on the tefillin.

The Rebbe referenced his halachic rulings several times. A notable example appears in the Rebbe's response regarding a husband entering the delivery room, where after the halachic discussion the Rebbe concludes, "Is it really not known that there is a published psak din letter about this from Rav Feinstein?!"

Rabbi Feinstein's descendants write: "The Lubavitcher Rebbe was especially close to our teacher [Rabbi Moshe Feinstein] and would refer many halachic questions to him."

Similarly, Rabbi Feinstein would refer difficult deliberations on fundamental matters to the Rebbe, such as intermarriage and matters of conversion.

In a response from 1974, the Rebbe directed a woman who had a halachic question regarding a get to Rabbi Moshe Feinstein, noting: "...and Rabbi Feinstein answers all who ask - even when he doesn't know them (and sometimes even by telephone) and it remains confidential, of course." (Igros Kodesh Vol. 29, p. 269, Letter 11,261)

In a letter to Rabbi Moshe Dovid Lieberman (see his entry), the Rebbe writes: "I received your letter... and I was pleased to hear that you received semicha from HaRav HaGaon etc. Rav Moshe Feinstein."

In Nissan 1978, approaching the inauguration of the "Beis Menachem" synagogue in Kfar Chabad built in the Rebbe's name, a letter was received from Rabbi Feinstein: "For the inauguration day of the 'Beis Menachem' synagogue in Kfar Chabad named after the Lubavitcher Rebbe shlita. We send you our warm blessings, may this house be a dwelling place, a place of song and prayer, Torah and fear of Heaven. Together with the tens of thousands of the House of Israel, we pray for the well-being and complete health of the Lubavitcher Rebbe shlita, may Hashem lengthen his days and years pleasantly."

In a letter to American Jewish author Herman Wouk (letter in English from 4 Iyar 1985 - printed in Hebrew translation in the book 'Guide for the Perplexed Generation' Vol. 2 p. 140), the Rebbe referred to a biographical detail in Rabbi Moshe Feinstein's life:

"...I mentioned the famous ruling of prominent rabbis and roshei yeshiva, one of whom, by the way, is Rabbi Moshe Feinstein shlita, who for many years before coming to the United States, held a position as rabbi in a Chassidic community in Russia as a Chassidic rabbi. When he arrived in New York, his community members included Chassidim and Misnagdim and various other Jewish groups. When it came to customs, he instructed members of certain groups to follow their specific customs. But when it came to matters of Kiddush Hashem, or its opposite, there could be no flexibility, nor deviation, especially given that it would be interpreted publicly, as mentioned above."

In 1980, he issued a letter regarding Shleimus Ha'aretz. On another occasion, when he heard about a certain rabbi in Britain who expressed that according to halacha there was room to discuss a Palestinian state with its capital in the Old City of Jerusalem, he said: "It's hard to believe such a statement was made by someone serving as a rabbi." In 1983, opinions were expressed by kippah-wearing individuals against Jewish settlement in territories captured in the Six-Day War. Rabbi Feinstein issued a letter encouraging settlement there.

Rabbi Feinstein often spoke about our era being before the revelation of Moshiach. Once when there were rumors that a "Para Aduma" was born in Eretz Yisroel and many saw this as a hint to the imminent redemption, Rabbi Moshe responded saying: "The cow needs to be at least two years old to be able to sprinkle from its ashes, and we are awaiting Moshiach to come immediately! Can we wait two years to become pure? Clearly, we will find an older cow and won't have to wait." R' Shachna Zahn testifies that Rabbi Feinstein told him that Moshiach is certainly already here, but for now is performing the actions needed during galus and afterward will be revealed to all.

On 7 Adar 1986, during his final days of illness before his passing, Tehillim was recited at 770 for his recovery under the instruction of the Rebbe's secretary Rabbi Yehuda Leib Groner.

Groups with Rav Feinstein

Several times, Chabad yeshiva bochurim visited Rav Feinstein, some at the Rebbe's instruction.

When a group of bochurim left from Samarkand and arrived at the Rebbe in 1971, the Rebbe sent them to discuss Torah learning with Rav Feinstein. The Rav, who himself had spent time under Communist rule, was deeply impressed by their spiritual stature in Torah and yiras shamayim.

One day during Chol Hamoed Sukkos 1972, it was announced in the small zal that the Rebbe was calling all those who had recently arrived from Russia to his room. About twenty-five people arrived. The Rebbe was wearing glasses and looking at a sefer. After some time, the Rebbe turned to his mazkir Rabbi Chaim Mordechai Aizik Hodakov and asked if everyone was present. When answered affirmatively, the Rebbe turned to those present and said he wanted them to go to Rav Feinstein and tell him about life in Russia, with the Rebbe expressing (among other things) "Tell him everything, without anivus." When they left the Rebbe's room, the mazkirs Rabbi Yechiel Binyamin Klein and Rabbi Chaim Yehuda Krinsky were waiting with two cars, the same cars the Rebbe travels in, and with them they traveled to Rav Feinstein. Rav Feinstein was very impressed to see young yungeleit and bochurim, most of whom were born many years after the Communist revolution, all yerei shamayim and complete, and able to learn a daf Gemara no less than an average bochur in America. When they told him that Rav Yaakov Notik knew half of Shas by heart, he was overcome and asked him: "How did you do it? How did you succeed in withstanding the nisyonos?!" Rav Notik answered him: "Did we have a choice?..." Afterwards, Rav Moshe turned to the young bochurim and asked them what they were learning and questions on perek "Ha'omer" in masechtas Kiddushin. When they answered the questions fluently, Rav Feinstein began to cry and wipe his eyes.

In 1978, a group of shluchim to the yeshiva in Seattle, Washington came to give him a sefer of pilpulim they had published. Leading the group were Rav Aryeh Leib Kaplan from Montreal, Rav Chaim Tzvi Groner and Rav Aharon Leib Raskin. Rav Feinstein was impressed with their learning.

Support for the Rebbe's Mivtzoyim

Rav Feinstein was an enthusiastic supporter of the Rebbe's activities and mivtzoyim and even expressed this in writing on many occasions.

In 1976, when the Rebbe launched Mivtza Neiros Shabbos Kodesh, he wrote: "Regarding the matter of Shabbos candles for girls, which the Lubavitcher Rebbe shlita is working to establish among Israel, that some people said I am opposed to this matter. They never heard such a thing from me, particularly since many practiced this in public in previous years. And if the Rebbe thinks it is a great thing to bring people closer to Torah and Shabbos observance through this, who can say it isn't so. May Hashem grant him success in his intention to sanctify Heaven's name, and in his desire to increase Torah observers and Shabbos observers in Israel."

In 1976, the Rebbe declared it "Shnas HaChinuch" and launched Mivtza Chinuch. Rav Feinstein joined the call and wrote: "Not long ago, this great man, the Gaon and Tzaddik of Lubavitch shlita, issued a call of awakening to strengthen the matter of education everywhere. I join his call, and my intention is that everyone is obligated to ensure that every Jewish boy and girl who still do not receive kosher education should enter kosher institutions, to Talmud Torahs and yeshivos al taharas hakodesh."

In 1978, after the Rebbe's health episode on Shmini Atzeres, Rav Feinstein wrote a general letter to the rabbonim of Israel: "In connection with the health situation of the Gaon and Tzaddik the Lubavitcher Rebbe shlita, who dedicates day and night to spreading Torah and strengthening Yiddishkeit, and bringing Jewish hearts closer to their Father in Heaven. I hereby turn to the honorable rabbonim shlita in every place, to speak in shuls and batei midrash, to awaken their communities regarding the known mivtzoyim of the Lubavitcher Rebbe to merit our Jewish brethren with the mitzvos of tefillin, mezuzah, Shabbos candles, etc... Certainly every action in these mivtzoyim will strengthen his health."

In Iyar 1980, during a period when the Rebbe strengthened the matter of Lag B'Omer parades, Rav Feinstein published a letter in which he called to assist the parades.

The Rebbe's Torah Scroll Initiative - 1982

In 1982, when the Rebbe announced the writing of communal Torah scrolls for Jewish unity, Rav Feinstein purchased approximately fifty letters for himself and his family members through Rabbi Avraham Shmuel Levin, secretary of the Rabbinical Alliance. He requested that the money and lists be delivered through his friend Rabbi Nachum Trebnik, who was the Rosh Yeshiva and Rav of Kfar Chabad, since he had encouraged him about this. During that conversation, Rav Feinstein and Rav Levin discussed negative comments made by someone about the Rebbe's activities. Rav Feinstein defended him saying, "He doesn't mean anything against the Rebbe personally, he's simply not accustomed to the Rebbe's global activities. He's used to the way of the Torah giants of the previous generation who were active within their own four cubits, and he doesn't understand that today is a different time where we must also act externally."

Rambam Study Initiative - 1984

In 1984, when the Rebbe announced the takana of studying Rambam, Rav Feinstein announced that he would join in fulfilling the Rebbe's directive. Regarding those who opposed the takana, he said that "they don't understand at all the Rebbe's approach, that his words are founded in holy mountains." Each year, before the Yarchei Kallah in New York, he would send a Torah pilpul on the Rambam. At the completion of the first cycle of Rambam, when opposition to the Rambam takana increased, he wrote: "My blessing of the Torah is sent to all participants in the completion of the first cycle of studying the Mishneh Torah of the Rambam... Yasher koach to the Lubavitcher Rebbe shlita, who merited and brought merit to the rabbis with the mitzvah of Torah study lishma, which is equivalent to all. May it be Hashem's will to lengthen his days and years, that his wellsprings should spread outward to spread Torah and yiras Hashem to the masses, until the coming of Moshiach speedily in our days, amen."

Support for Tomchei Tmimim

Rav Feinstein viewed the Tomchei Tmimim yeshiva network, founded by the Rebbe Rashab, as centers of holiness and purity influencing thousands of Jewish communities worldwide. In a letter of blessing to the yeshiva, he blessed its success in surviving the Holocaust in Europe and its flourishing in America under the Frierdiker Rebbe, with the Rebbe's leadership. He also sent letters of blessing and encouragement for the establishment of Yeshivas Tomchei Tmimim in Caracas, Venezuela's capital, and to Yeshivas Ohr Elchanan in Los Angeles.

Family Recognition

On one occasion, his son-in-law, Rav Tendler, also expressed his admiration for the Rebbe's worldwide activities: "In my role, I travel extensively worldwide and frequently meet Chabad chassidim. I can say from my experience that Chabad is present in every location in this world, to awaken Jews not to forget the Torah. Recently, I visited Las Vegas. During the visit, I stayed with the local shliach Rabbi Harlig, and saw up close the greatness of his work... to prevent the forgetting of Torah."

Rabbi Feinstein's Dedications and Letters to the Rebbe

The depth of Rabbi Feinstein's friendship and esteem for the Rebbe can be seen in his letters to the Rebbe. In one of them he writes:

"I hereby bless His Honor, the holy Gaon and Tzaddik, our teacher Rabbi Menachem Mendel Schneerson shlita, the Rebbe of Lubavitch, who with remarkable mesiras nefesh guards the walls of religion and spreads Torah and yiras shamayim among the Jewish people. May Hashem bless him with long life and years in his elevated leadership, in his many activities for the honor of Hashem, His Torah and mitzvos, through which he brings many who have strayed closer to our Father in Heaven and to the love of our holy Torah and practical observance of mitzvos, until the coming of Moshiach Tzidkeinu, the building of our Beis Hamikdash, and celebrating Pesach with all of Israel according to halacha. Writing and signing with love and joy, in my name and in the name of all the rabbonim members of Agudas HaRabbonim. Moshe Feinstein." — Letter from Rosh Chodesh Nissan 1977

Towards the Rebbe's 80th birthday on 11 Nissan 1982, Rabbi Feinstein wrote a letter of blessing expressing his admiration and friendship for the Rebbe:

"Regarding my dear friend, His Honor the holy Gaon and Tzaddik, the Rebbe Menachem Mendel Schneerson shlita of Lubavitch, it is known throughout the world about his genius in Torah and how he is truly a great worker in Torah with genius, that he constantly works in Torah and is truly a master of Torah... During the years that I have known the Rebbe shlita, our connection has been one of great friendship, I had several opportunities to discuss complex matters with him both in nigleh and nistar, and I always considered him according to his great stature and genius... who has sanctified himself to enter fully into spreading Torah throughout the world, to both small and great in Klal Yisrael together, and truly works with genius in the matter of spreading Torah. And it is evident that all his work is in this... in all his many activities, both public and personal. And this I wanted to mention that this is truly the greatest praise, and it is the praise that was given to all the great ones of the world throughout all the years, that they were primarily in Torah... Therefore I join in the celebration of what has been accepted throughout the entire world, that there is great joy that Hashem has lengthened his days to the age of eighty. And it is not enough to simply bless him with long life and years, for today this blessing is not sufficient, as we hope that Melech HaMoshiach will come immediately and soon, and then the Rebbe shlita will merit to work forever in Torah and yiras shamayim... And we bless that my friend the Rebbe shlita should merit this longevity, and that all of Klal Yisrael should merit the complete geulah soon together with the Rebbe shlita." — "Vayehi BiYeshurun Melech", 1982

A year later, in 1983, he wrote as president of Agudas HaRabbonim:

"His Honor our friend and friend of all Israel, the Gaon and Tzaddik our teacher Rabbi Menachem Mendel Schneerson shlita, the Rebbe of Lubavitch. We come hereby in our name and in the name of all the rabbonim members of Agudas HaRabbonim, to bless His Holy Torah Honor upon reaching the age of eighty-one, through Hashem's kindness upon him and upon all Israel who need his Torah Honor and the Torah scholars. May Hashem lengthen the days and years of his Torah Honor with vigorous and fresh life for his influence on Israel with even greater strength and power, and may he lead his leadership for the benefit of Klal Yisrael and the honor of Heaven until Shiloh comes. Writing and signing in our name and in the name of all the rabbonim members of Agudas HaRabbonim. Moshe Feinstein, President."

In the Library of Agudas Chassidei Chabad there are several of Rabbi Feinstein's seforim with dedications for the Rebbe from the author:

On the sefer "Dibros Moshe" on Masechta Bava Basra he wrote: "To His Honor the Rebbe of Lubavitch shlita, a gift from the author, and with blessing that Hashem should lengthen his leadership until the coming of Moshiach. Moshe Feinstein 15 Marcheshvan 1969." On the "Dibros Moshe" of Masechta Shabbos he wrote: "With Hashem's help. To His Honor my friend the Gaon and Tzaddik Rabbi M.M. shlita Rebbe of Lubavitch, may Hashem raise his horn until the coming of the righteous redeemer. The author Moshe Feinstein. 2 Rosh Chodesh Adar 1972." On the "Dibros Moshe" on Masechta Yevamos, he wrote: "With Hashem's help, with blessing to His Honor the Gaon Maharamash the Rebbe of Lubavitch shlita, may his throne be elevated until the coming of Melech HaMoshiach soon. The author Moshe Feinstein. 13 Tammuz 1980."

Rabbi Feinstein also wrote a haskama for the sefer Yechi HaMelech written by Rabbi Sholom Dovber Wolpo, on studies in the Rambam's Laws of Kings.

His Seforim

Igros Moshe (9 volumes) - His responsa. These books are fundamental pillars in halachic ruling literature, 1959-1996.

Dibros Moshe (15 volumes) - On the Shas.

Kol Ram (3 volumes) - His public drashos.

Drash Moshe.

Badei Moshe 2 volumes (collection of his writings) edited by Rav Williger

Tahoras Moshe 2 volumes (collection of his writings) edited by Rav Williger

Further Reading

• Sholom Dovber Wolpo, Shemen Sasson Meichaveirecha, Volume 4 pages 31-48.
• Newspaper describing the yechidus in 1974.

External Links

His Books

• 'Igros Moshe' Volume 1 (Orach Chaim 1, Even Ha'ezer 1) - HebrewBooks
• 'Igros Moshe' Volume 2 and 3 (Yoreh De'ah 1) - HebrewBooks
• 'Igros Moshe' Volume 4 (Choshen Mishpat 1, Orach Chaim 2, Even Ha'ezer 2) - HebrewBooks
• 'Igros Moshe' Volume 5 (Yoreh De'ah 2, Orach Chaim 3, Even Ha'ezer 3) - HebrewBooks
• 'Igros Moshe' Volume 6 (Orach Chaim 4, Yoreh De'ah 3) - HebrewBooks
• 'Igros Moshe' Volume 7 (Even Ha'ezer 4, Choshen Mishpat 2) - HebrewBooks
• 'Igros Moshe' Volume 8 (Orach Chaim 5, Yoreh De'ah 4) - HebrewBooks
• 'Dibros Moshe' Bava Kama Volume 1 - HebrewBooks
• 'Dibros Moshe' Bava Kama Volume 2 - HebrewBooks

Articles and Publications About Him

• Hagaon Reb Moshe Feinstein and Tefillin of Rabbeinu Tam ● Special - Chabad Info
• Details about the connection between Rav Feinstein and Chabad, on the Alei Sefer website
• Rare documentation > The posek hador HaGR"M Feinstein leaving 'yechidus' with the Rebbe
• Tmimim hosted at the home of Rav Feinstein
• The Child Who Was Required to Disappear, Rav Yosef Yitzchak Zaltzman tells about his meeting with Rav Feinstein, 'My Story' issue number 358, Erev Pesach 5782 (2022)
• Between Giants of Spirit, Rav Alex Stern tells about Rav Feinstein's relationship with the Rebbe, 'My Story' issue number 418, 27 Sivan 5783 (2023)
• When Rav Feinstein Came for Yechidus with the Rebbe, Magazine issue 8 Parshas Vayechi 5784 (2023) (English)