Joseph ben Samuel Bonfils was a French rabbi, Talmudist, Bible commentator, and payyetan (author of piyyutim) of the mid-eleventh century.
"[5] Among his numerous legal decisions one deserving mention is that pronouncing money won in play an illegal possession, and compelling the winner to return it.
[6] Another important decision ordered a lighter tax on the Jewish farmer than on the merchant, for the reason that agriculture was less profitable than trade.
His critical notes upon Judah's Halakot Gedolot and the Seder Tannaim ve-Amoraim show marked departures from the current text.
Of his many piyyuṭim, the best-known is that written for "Shabbat HaGadol" (the Sabbath before Passover), beginning with the words "Elohei haruchot," and containing the rules for the Passover-cleaning ("bi'ur") and the narrative service for the evening.