2:28 PM
Gil Student
From the Ezras Torah calendar:
MOTZEI SHABBOS,
Dec. 4, 22 Kislev
At Maariv of Motzei Shabbos, we begin to include "Vesain Tal Umatar" into the Shemonah Esrei. If one became aware, after he had completed the Bracha M’vorech Hashunim, that he had omitted "Vesain Tal Umatar" he should wait to insert it right before "Ki Ata Shmaye" of Shema Koleina. If he had already completed the Bracha Shomeya Tefillah, he may insert it before saying "Retzei". If he had already begun "Retzei" he must return to the Bracha "Berech Aleinu", which is the proper place for "Vesain Tal Umatar". If he had already completed the Shemonah Esrei and stepped backward, then he must repeat the entire Shemonah Esrei. In any situation in which a person must repeat the entire Shemonah Esrei, he may fulfill his obligation by listening to every word of the Chazzan's Repetition from begining to end, with the intention of thus fulfilling his obligation.
(It is advisable to repeat 101 times [at the very least 90 times]: Ves Kal Minei Svuasa Letova Vesain Tal Umatar" so as to make the inclusion of "Vesain Tal Umatar" habitual and fluent, thus eliminating any future doubt as to whether one included "Vesain Tal Umatar" in the Shemonah Esrei or not.)
