Simeon Kayyara, also spelled Shimon Kiara (Hebrew: שמעון קיירא), was a Jewish-Babylonian halakhist of the first half of the 8th century.[1] Although he lived during the Geonic period, he was never officially appointed as a Gaon, and therefore does not bear the title "Gaon".
Rabbinic sources often refer to Kayyara as Bahag, an abbreviation of Ba'al Halakhot Gedolot ("author of the Halakhot Gedolot"), after his most important work.
- ^ One of the Jewish sages of Yemen appends the date of the Halakhot Gedolot's composition by Simeon Kayyara, saying that the book was written in the 1,054th year of the Seleucid Era, being equivalent to 4,503 anno mundi (= 743 CE).