Editing Mishneh Torah of the Rambam (section)

== Its Sources ==
The Rambam did not cite his sources in his sefer, but rather brought only decided halacha.

In one of his letters, the Rambam writes about this:

"The righteous dayan came to me with a booklet from the work in his hand, containing hilchos rotzeach from Sefer Nezikin, and showed me one halacha, saying to me: 'Read this.' I read it. I said to him: 'What doubt is there in this?' He said to me: 'In which place were these things said?' I said to him: 'In their place, either in Eilu Hen HaGolin or in Sanhedrin in the laws of a murderer.' He said to me: 'I have already gone through everything and did not find it.' I said to him: 'Perhaps in the Yerushalmi?' He said to me: 'I searched and did not find it, not in the Yerushalmi and not in the Tosefta.' I was astounded for about an hour, and I said to him: 'I remember that in a certain place in Gittin these matters were explained.' I took out Gittin and searched but did not find it. I wondered and was bewildered and said: 'Where were these things said? Leave it now until I remember their place.' He left, and I remembered. I sent a messenger and brought him back, and showed him the matters explicitly explained in the Gemara Yevamos incidentally. He was amazed and left. And so I am always in pain from this, that the questioner will come and ask: 'Where were these things said?'... And if this happened to me, and I am the author, what will happen to other people?"

Later in the letter, the Rambam announces that he decided to cite sources only if the source for the halacha is not in the masechta dealing with the topic, because regarding sources in the masechta dealing with the topic, one who comes to clarify the source of a halacha needs to be expert in the relevant masechtos.

However, despite this, the Rambam did not manage to complete this task.