MINHAG AND HALAKHAH
16. And that musaf had to be recited. In Eretz Yisra’el, where the new moon was declared by the Beit Din Hagadol, no such reminder was necessary; Meiri, Beit Habehirah, Ta'anit, 28b.
17. Halakhot Gedolot, ed. Warsaw, p. 34d, on the grounds that"whenever less than the whole people of Israel is gathered together, they are called‘yahid."
19. Shulhan Arukh, Orah Hayim 422.2.
20. Shabbat 23a, where this rule is derived alternately from Deuteronomy 17.4% and from Deuteronomy 32.7. See Rambam (Yad, Berakhot 11.3):"The matter is thus, that He has commanded us to harken to those(the scholars and judges) who
command us to kindle the Hanukah Jlamp, to read the Megillah, and likewise with all other rabbinic ordinances."
21. B. Sukkah 44b.
22. Rashi, B. Sukkah 44a, s.v. minhag. See also his responsum in Siddur Rashi, ed. Freimann, ch. 540, p. 269: while it is permissible to recite the concluding benediction to the Hallel, whose formula does not contain the Hebrew asher gid’shanu...v'tsivanu.
23. Exodus 20.7; B. Berakhot 33b: Yad, Berakhot 1.15.
24. Sefer Ha'orah, ed. Buber , part 2, ch. 59, p. 200; Isur Veheter,ed. Ehrenreich, ch. 55, p. 26; Sefer Hapardes, ed. Ehrenreich, p. 349; Teshuvot Rashi, ed. Elfenbein, #347, p 351; Mahzor Vitry, ch. 241, p. 206.
26. Halakhot Gedolot, ed. Hildesheimer, p. 359.
27. B. Berakhot 14a.
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