החודש הזה לכם וגו'. ודרשו רבותינו ז"ל (ר"ה ד"כ ע"א) כזה ראה וקדש, יש קבלה מהבעל שם טוב זצללה"ה נ"ע להתענות בכל ערב ראש חודש עד המולד: (צרור החיים ד"י ע"ד).
This month shall be to you . . . (ibid. 12:2) “G‑d showed Moses the new moon, and said, ‘When you see it like this, sanctify.’”6Rosh Hashanah 20a. There is a tradition from the Baal Shem Tov that a person should fast on the eve of each Rosh Chodesh until the molad.7The astronomical moment when the new moon appears. The Baal Shem Tov is expounding on the word “sanctify,” in the Sages’ statement. That is, on the eve of Rosh Chodesh, you should sanctify yourself by fasting, until the appearance of the new moon. Tzror HaChayim, p. 10b
החודש הזה לכם וגו'. ודרשו רבותינו ז"ל (ר"ה ד"כ ע"א) כזה ראה וקדש, יש קבלה מהבעל שם טוב זצללה"ה נ"ע להתענות בכל ערב ראש חודש עד המולד:
(צרור החיים ד"י ע"ד).
This month shall be to you . . . (ibid. 12:2)
“G‑d showed Moses the new moon, and said, ‘When you see it like this, sanctify.’”6Rosh Hashanah 20a.
There is a tradition from the Baal Shem Tov that a person should fast on the eve of each Rosh Chodesh until the molad.7The astronomical moment when the new moon appears. The Baal Shem Tov is expounding on the word “sanctify,” in the Sages’ statement. That is, on the eve of Rosh Chodesh, you should sanctify yourself by fasting, until the appearance of the new moon.
Tzror HaChayim, p. 10b