Isaac ben Joseph of Corbeil


Isaac ben Joseph of Corbeil was a 13th-century French rabbi and tosafist, best known as the author of Sefer Mitzvot Ḳatan.

Biography

Isaac was the son-in-law of R. Yechiel of Paris, whose yeshiva he attended, and the pupil of the "Great Men of Évreux," notably Samuel of Évreux, whom he calls "the Prince" of Évreux. Isaac's conspicuous piety drew toward him many disciples, the best known of whom were Perez ben Elijah of Corbeil, Baruch Ḥayyim ben Menahem of Niort, and his fellow citizen Joseph ben Abraham.

Works

In 1277 – encouraged by his pupils – he published Sefer Mitzvot Katan, an abridgment of Moses ben Jacob of Coucy's Sefer Mitzvot Gadol. The work's official title is Ammudei haGolah, and is written in the form of a poem. It is divided into 7 "pillars" as he says, "seven pillars corresponding the seven days of the week, and I have asked every man to read one pillar each day." It includes Halacha along with aggadic stories and mussar. Although based on the Sefer Mitzvot Gadol, the work does not delve into the argument behind the legal decision. "Semaḳ" was "most favorably received" by the Ashkenazi communities. It has often been edited and annotated, with most editions contain lengthy commentaries.
Isaac also published Liḳḳuṭim, and several small compilations containing his ritual decisions.
The Kol Bo contains a long fragment of a Talmudic work of R. Isaac, with this superscription: קצת דינים מה"ר יצחק ז"ל.