Halachot Gedolot

Halachoth Gedoloth (lit. great halachoth) is a work on Jewish law dating from the Geonic period. It exists in several different recensions, and there are sharply divergent views on its authorship, though the dominant opinion attributes it to Simeon Kayyara.

Authorship controversy
Kayyara's chief work is believed by some to be the Halakhot Gedolot, whereas Moses ben Jacob of Coucy wrote that it was in fact composed by Yehudai ben Nahman.

Based on anachronistic discrepancies, Moses ben Jacob's opinion that it was Yehudai ben Nahman who composed the Halachoth Gedoloth was thought to be an error. David Gans may have been the first to suggest that Moses ben Jacob, in referring to "Rav Yehudai" as the author, was actually alluding to Yehudai Hakohen ben Ahunai, Gaon of the Sura Academy (served 4519 - 4524 of the Hebrew calendar )

As to the time of its composition, all the older authorities are silent. Abraham ibn Daud alone has an allusion to this problem, which has caused much perplexity. According to him, "Simeon Kayyara wrote his work in the year 741, and after him lived Yehudai Gaon, author of the Halakhot Pesukot, which he compiled from Simeon's Halakhot Gedolot." This statement cannot be relied upon, as Simeon Kayyara in fact lived in the century following Yehudai Gaon; and Halevy is of the opinion that the names were inadvertently switched, though this reading creates as many problems as it solves. The Ramban in his preface to Sefer Ha-Mitzvot says in passing that Simeon, not Yehudai, was the author of Halachot Gedolot.

Many ancient authorities, like the Geonim Sherira ben Hanina and Hai ben Sherira, and others, support Kayyara's authorship; and according to Abraham Epstein, there can be no doubt that Simeon Kayyara wrote the Halakhot Gedolot. It would also seem from the statements of these authorities that Simeon Kayyara's chief sources were the She'iltot of Ahai of Shabha and the Halachot Pesukot of Yehudai ben Nahman.

Other authors, in particular from France, Germany and Italy, ascribe this work to Yehudai ben Nahman. Some scholars have tried to reconcile these two views by saying that the core of the work was written by Yehudai Gaon and that Simeon Kayyara later expanded it. Halevy holds that this "core" is to be identified with the Halakhot Pesukot. Louis Ginzberg (in his Geonica) is of the opinion that the Babylonian recension (see below) is the work of Yehudai Gaon and that Simeon Kayyara expanded it into what is now known as the Spanish recension. Both these views were formed before the discovery of the sole surviving manuscript of the Halakhot Pesukot, and the question may need to be reassessed.

Title variations
Some Jewish-Spanish authors, to distinguish it from later halakhic codices of a similar nature, called the work "Halakhot Rishonot". It gives the entire halakhic and practical material of the Talmud in a codified form, and seems to represent the first attempt to treat it according to its contents rather than according to the arrangement of its treatises.

Interpretations and redactions
In the course of time the Halakhot Gedolot underwent many changes. In Spain and in North Africa the legal decisions of the Geonim were incorporated into the book, and its whole appearance was so changed that gradually a different recension was developed.

The original or Babylonian redaction exists in printed form in the editions of Venice (1548), Amsterdam (1762), Vienna (1810), etc., and finally in that of Warsaw (1874, with an index of passages and notes by S. A. Traub). This redaction was used by the Babylonian geonim and by the German and northern French scholars; for the citations of the latter from the Halakhot Gedolot, which work they ascribe to Yehudai Gaon, refer to this recension. In the 13th century this recension reached Italy, where it was used by Isaiah di Trani (see Ha-Makria, No. 31).

The second or so-called Spanish redaction (Mahadurat Aspamia) exists in a manuscript in the Vatican library, and has been edited by A. Hildesheimer in the collection of the Mekitze Nirdamim (Berlin, 1888–92). The material of this recension is much richer and more comprehensive, since it contains many passages from the Talmud, mnemonic introductory words ("simanim"), the order of the weekly lessons, and, most important of all, legal decisions of the Geonim, usually indicated by the term "shedar" (="he sent"), which are lacking in the earlier redaction. The first gaon of whom a teshuvah is mentioned in this recension is Yehudai Gaon; the last, Tzemah ben Paltoi (d. 890). A. Epstein has concluded, accordingly, that this redaction was made, or rather finished, about the year 900, in some place where the Jews were in close literary correspondence with the Babylonian seminaries. This was either in Spain or in northern Africa—probably in Kairwan, the center of Talmudic studies at that time. Evidence in favor of Kairwan is supplied by a passage in the Halakhot Gedolot (ed. Hildesheimer, p. 175), which mentions a usage as being common among the "Bene Afrika"; for it is known that "Afrika" frequently connotes Kairwan.

From northern Africa or Spain this recension was carried into Italy: it was used by the scholars of these three countries; and all of them regarded Simeon Kayyara as its author. In the 12th century the recension was brought to northern France, and in the 13th to Germany, where it is sometimes cited by the scholars of both countries as "Halakhot Gedolot shel Aspamia".

A more recent edition, based on the Venice edition of the Babylonian recension but showing variants from other versions, was published in Jerusalem in 1991 by Ezriel Hildesheimer (grandson of the Hildesheimer who edited the Berlin edition). References to "the Hildesheimer edition" must therefore be approached with caution.