Introduction of Maimonides, of blessed memory
Then I shall not be ashamed, when I have regard unto all Your commandments.
All of the commandments that were given to Moses at Sinai were given with their meanings, as it says: "And I will give you the Stone Tablets and the Torah and the commandments". "The Torah" refers to the Written Torah, and "the commandments" refers to its explanations. And He commanded us to fulfill the "Torah" based on the "commandments". And these "commandments" are what are called the Oral Law. The entire Torah was written by our teacher Moses before he died, in his handwriting. And he gave one copy of the Torah to each tribe and placed one copy in the Ark for a witness; as it says: "Take this Torah scroll and place it" etc. And he did not write down the "commandment" which is the explanation of the Torah. Rather he instructed it to the elders and to Joshua and to the rest of the entirety of Israel, as it says: "The entire matter which I command you, that you shall be careful to fulfill" etc. And therefore, it is called "the Oral Torah". Although the Oral Torah was not written down, our teacher Moses taught it in its entirety in his court to seventy elders; and Eleazar and Pinchas and Joshua, the three of them received it from Moses. And our teacher Moses passed down the Oral Torah to his student Joshua and commanded him on it; and Joshua also taught it orally for his entire life. And many elders received it from Joshua. And Eli received it from the elders and from Pinchas. And Samuel received it from Eli and his Court. And David received it from Samuel and his Court.
Criticism of Rabbi Abraham ben David
I have seen that which Moses, the Great Light, son of Maimon, of blessed memory, took upon him to expound this law. Moses commanded us a law, an inheritance, and compiled the compilation of the Great "Hand" on all the ordinances of the entire law, its generalities, its particularities and its details; and who like him teaches in a short and pure language like the language of the Mishnah? And the hand of the generations that come after him is short of understanding his words and of descending to the depth of his pure sayings, that are refined seven times. The source of each and every law is also hidden from them. And moreover, with regard to that which Rabbi Abraham ben David criticised him; and in some instances, one needs a carpenter and the son of a carpenter to solve them. And Rabbi Moses Kohen also commented on him. And his words turn out as the words of the sealed book. And as our teacher Rabbi Asher wrote in a responsum, and this is his language: All those who instruct instructions from the words of our teacher, Rabbi Moses, son of Maimon, and are not fluent in Mishnah and Gemara to know from where he brought out his words, err to permit the forbidden and to forbid the permitted; for whoever reads it thinks that he understands it and it is not so. For if he is not fluent in Mishnah and Gemara and does not understand a thing to its right way and to its truth, he will fail in judgement and in instruction. Therefore, a man should not rely on reading his book to judge and to instruct if not that he will find proof in Gemara. And so I heard from the mouth of a great man in Barcelona who was fluent in three Orders and said: I wondered on people who did not learn Gemara and they read the books of our teacher, Rabbi Moses, son of Maimon, and they instruct and judge from his books and they think that they recognise from them; for he said: I recognise in myself that in the three Orders that I learnt, I understand when I read his books; but in his books in the laws of Kodashim and Agriculture, I do not understand in them anything. And I know that so it is to them in all his books. Until here is his language. And then, one holy one stood up speaking and authored the book Maggid Mishneh in which he revealed the location of the source of each law. And if that law is learnt as a disagreement, he gave a praiseworthy reason why he ruled that way. And he also settled and answered the criticisms of Rabbi Abraham ben David. And we heard that the name of the rabbi, the author of the book Maggid Mishneh, was Invidal de Tolosa, a friend of our teacher Rabbi Nissim. And behold, we did not merit his light, only in the Book of Seasons and Women and Holiness and Damages and Acquisition and Judgements. And even in these books, some laws and some chapters remained from which their explanation did not arrive to our hands. And my soul yearned and even pined to understand his words in all his books and to know their source and from where they come. And so did I see several people desiring and yearning for this. And therefore, I, the young Joseph, son of our teacher Rabbi Ephraim, son of our teacher Rabbi Joseph Karo, may his memory be for the life of the World to Come, stood up and were encouraged and strengthened with the mercy of Heaven and agreed to write on the rest of the books of Maimonides the source of each and every law and to explain his words and to answer to the criticisms of Rabbi Abraham ben David and to the comments of Rabbi Moses Kohen as my short hand will reach. And also in the books that the rabbi, the Maggid, did write on them, there remained instances that one needs to scrutinise in them and I will turn my hand on them. And if it is found in the words of the commentators of the Gemara, or Rabbi Isaac Alfasi, or in their responsa, that they spoke in them, in the understanding of the words of our teacher Moses, son of Maimon, I will write their words. And if I will see to answer his words in another way, I will write what they will show me from Heaven. And the reader, whatever he will choose he shall want and bring close. And in instances where I will not find it in the words of the aforementioned commentaries, I will write that which seems in my humble opinion. And I relied on the benevolence of God; He shall grant me free gifts to enlighten my eyes to be wise, to do good, to descend to the depth of the understanding of Maimonides, of blessed memory. And He should reveal my eyes to understand wonders from His Torah. And I named this book Kesef Mishneh since it contains the yearn of those yearning to understand the words of this precious book, Mishneh Torah. And from the True Helper, may He be adored, I will request help and assistance; He shall help me for the sake of the Glory of His Name and He should reveal my eyes and I shall see wonders from His Torah.