We recite three berakhot before the nighttime reading: “Who has sanctified us with His mitzvot and commanded us concerning the reading of the Megilla” (“asher kideshanu be-mitzvotav ve-tzivanu al mikra megilla”); “Who performed miracles for our ancestors in those days, at this time” (“she-asa nisim la-avoteinu ba-yamim ha-hem ba-zeman ha-zeh”); and “Who has given us life, sustained us, and brought us to this time” (“she-heĥeyanu ve-kiyemanu ve-higi’anu la-zeman ha-zeh”).
The berakhot prepare us for the mitzva, focusing the reader and the listeners on fulfilling the mitzva and understanding its purpose: to remember and publicize the miracle that God performed for our ancestors. Nevertheless, one who reads the Megilla without reciting a berakha fulfills his obligation, as long as he intends to fulfill the mitzva (sa 690:14).
There are varying customs regarding the recitation of She-heĥeyanu during the day. According to Sephardic custom, one does not recite She-heĥeyanu during the day because the She-heĥeyanu recited at night covers the entire day. According to Ashkenazic custom, one must repeat the berakha prior to the daytime reading, because that reading is an independent mitzva. Moreover, the daytime reading is the more important reading of the two; therefore, its berakhot cannot be covered by the berakhot recited at the nighttime reading (sa 692:1).
When reciting She-heĥeyanu before the Megilla reading, it is proper to have in mind that the berakha also applies to the other mitzvot of the day: mishlo’aĥ manot, matanot la-evyonim, and the festive meal. Sephardim have these mitzvot in mind at night, while Ashkenazim do so during the day (mb 692:1).
After the Megilla is read and the scroll is rolled back to the beginning, common custom is to recite “Ha-rav et riveinu,” a berakha of praise and thanksgiving. According to most poskim, this berakha is recited only when the Megilla is read in the presence of ten men or women. If fewer than ten people are present, however, we do not recite the berakha.
. In contrast to the berakhot we recite before the reading, “Ha-rav et riveinu” is not obligatory. Rather, it is a berakha of praise and thanksgiving that depends on one’s custom, as the Mishna states, “In a place where it is customary to recite the berakha, one should recite it, and in a place where it is customary not to recite the berakha, one should not recite it” (Megilla 21a). Nowadays, everyone recites it. Orĥot Ĥayim quotes the Yerushalmi as saying that one recites it only in a minyan, and Beit Yosef and Rema 692:1 codify this. However, Rashi, Maharam, and Radbaz maintain that even an individual recites it. Ben Ish Ĥai, Year 1, Hilkhot Purim 13 (Tetzaveh) concurs, and those who follow the rulings of Ben Ish Ĥai act accordingly. bhl 692:2 and Yabi’a Omer, oĥ 8:56 state that one should not recite the berakha unless a minyan is present, because it is a case of uncertainty. (This decision is especially logical in light of the ruling of Behag and Mahari Weil that an individual omits even the first three berakhot.) The prevalent custom is not to recite it when reading the Megilla alone, but one should not rebuke those who want to recite it. It is uncertain whether women count toward the ten (Rema 690:18). Pri Ĥadash and Pri Megadim state that this uncertainty relates only to the question of whether women can be counted together with men, but a minyan of ten women certainly recites the berakha. Although some have a custom not to recite it, the halakha follows those who maintain that it should be recited in the presence of ten women, as Mikra’ei Kodesh (Frank), Purim 35 and Yabi’a Omer, oĥ 8:56:4 state. It seems that, in practice, women can also be counted together with men, be-di’avad, since many authorities maintain that even one person may recite this berakha.