to donate firecrackers and fireworks to the synagogue in honour of Simchat Torah, Rabbi Gombiner believed it proof of the effect of allowing boorish commoners to celebrate a scholars' holiday. Influence The Magen Avraham was the subject of a commentary by Samuel Neta HaLevi of Kolin, entitled Mahatsit ha-shekel, and another by David Solomon Eibenschutz, entitled Levushei Serad. R. Yechiel Michel Epstein’s Aruch HaShulchan and R. Yisrael Meir Kagan’s Mishnah Berurah relied on Gombiner for their acceptance of Kabbalistic practices. There is a major dispute in the 17-18th century as to how to figure Rabbinic hours of the day. One approach (that of Gombiner, in his Magen Avraham) reckons the day from dawn until nightfall. The other approach (that of the Vilna Gaon) reckons the day from sunrise to sunset. For rituals, which are prescribed in the morning, Magen Avraham's calculations will always be earlier than that of the Vilna Gaon. For rituals, which are prescribed in the afternoon or evening, Magen Avraham's calculations will always be later than that of the Vilna Gaon. Notable Descendants Rabbi Chaim Pinchas Lubinsky Shlomo Zemach Bibliography Jacob, Katz The "Shabbes Goy": A Study in Halakhic Flexibility Jewish Publication Society, 1989 Chayyim Tchernowitz, Toldot Haposkim 3: 164-172. J. Wrescher, Introduction to Shemen Sason (2000). References External links Jewish Encyclopedia entry his work on Tosefte, Amsterdam 1732 biography by Mordechai Margulies (in Hebrew) 1635 births 1682 deaths 17th-century Polish rabbis People from Kalisz Authors of books on Jewish law People from Gąbin