Isru Chag () refers to the day after each of the Three Pilgrimage Festivals in Judaism: Passover, Shavuot and Sukkot.
The phrase originates from the verse in Psalms 118:27, which states, "Bind the Korban with cords to the corners of the altar." According to the Talmud:
In a responsum to a community that had inquired as to the rationale behind the observance of Isru Chag, Yosef Hayyim (1832–1909) cited Isaac Luria (1534–1572), the founder of Lurianic Kabbalah, to the effect that Jews connect the day after the holiday to the holiday itself due to the remaining “light” of the holiday: in other words, so that the sanctity of the holiday will be extended.Shu”t Torah Lishmah: Orach Chaim, Question 140
Yisrael Meir Kagan (1838–1933) ruled that the minhag (custom) is to generally forbid fasting on Isru Chag, except in instances when as a result of great distress the community synagogue decrees it.Mishna Berurah Orach Chaim 429:14
Almost all communities omit tachanun (additional prayers of supplication) on Isru Chag. אנציקלופדיה יהודית: אסרו חג However, communities that follow the rulings of Maimonides (1135–1204), such as the Dor Daim (a movement founded in 19th century Yemen), maintain that the only days on which Tachanun is to be omitted are Shabbat, Jewish holidays, Rosh HaShanah, Rosh Chodesh, Hanukkah, Purim, and the mincha on the eve of any Shabbat and holiday.Mishne Torah Hilchot Tefillah 5:15
|
|