Berakhot 29a
ברכות כ״ט א — ד"ה מַתְקִיף לַהּ רַב אָשֵׁי
Berakhot 29a:22-23
Discusses the placement and correction of requests in the Amidah, including the principle that an omitted request may be made in the blessing designated for requests, which underlies insertion in Shema Koleinu.
מַתְקִיף לַהּ רַב אָשֵׁי: וְנֵימְרַהּ בְּ״שׁוֹמֵעַ תְּפִלָּה״, דְּאָמַר רַבִּי תַּנְחוּם אָמַר רַב אַסִּי: טָעָה וְלֹא הִזְכִּיר גְּבוּרוֹת גְּשָׁמִים בִּ״תְחִיַּית הַמֵּתִים״ — מַחֲזִירִין אוֹתוֹ. שְׁאֵלָה בְּבִרְכַּת הַשָּׁנִים — אֵין מַחֲזִירִין אוֹתוֹ, מִפְּנֵי שֶׁיָּכוֹל לְאוֹמְרָהּ בְּ"שׁוֹמֵעַ תְּפִלָּה". וְהַבְדָּלָה בְּ״חוֹנֵן הַדָּעַת״ — אֵין מַחֲזִירִין אוֹתוֹ, מִפְּנֵי שֶׁיָּכוֹל לְאוֹמְרָהּ עַל הַכּוֹס. טָעָה שָׁאנֵי. גּוּפָא, אָמַר רַבִּי תַּנְחוּם אָמַר רַב אַסִּי: טָעָה וְלֹא הִזְכִּיר גְּבוּרוֹת גְּשָׁמִים בִּ״תְחִיַּית הַמֵּתִים״ — מַחֲזִירִין אוֹתוֹ. שְׁאֵלָה בְּבִרְכַּת ״הַשָּׁנִים״ — אֵין מַחֲזִירִין אוֹתוֹ, מִפְּנֵי שֶׁיָּכוֹל לְאוֹמְרָהּ בְּ״שׁוֹמֵעַ תְּפִלָּה״. וְהַבְדָּלָה בְּ״חוֹנֵן הַדָּעַת״ — אֵין מַחֲזִירִין אוֹתוֹ, מִפְּנֵי שֶׁיָּכוֹל לְאוֹמְרָהּ עַל הַכּוֹס. אֶלָּא אִידֵּי וְאִידֵּי בְּיָחִיד, וְלָא קַשְׁיָא: הָא דְּאִדְּכַר קוֹדֶם ״שׁוֹמֵעַ תְּפִלָּה״,
Rav Ashi strongly objects to this: If so, let us say the request for rain in the framework of the abridged blessing in the section alluding to the blessing Who listens to prayer. As Rabbi Tanḥum said that Rav Asi said: One who erred and did not mention the might of the rains in the blessing on the revival of the dead, we require him to return to the beginning of the prayer and repeat it. However, one who erred and failed to recite the request for rain in the ninth blessing of the Amida, the blessing of the years, we do not require him to return to the beginning of the prayer and repeat it because he can recite it in the blessing Who listens to prayer. And one who erred and failed to recite havdala in the blessing Who graciously grants knowledge, we do not require him to return to the beginning of the prayer and repeat it, as he can recite havdala over the cup of wine. One can ask for rain in the blessing Who listens to prayer, and, consequently, can introduce it at the end of the abridged blessing without becoming confused. The Gemara responds: One who erred is different, and only then does he have the option to ask for rain in the blessing Who listens to prayer. Ab initio, the request for rain may not be inserted there. The statement that Rabbi Tanḥum said that Rav Asi said was incidental to the previous discussion. The Gemara attempts to understand the matter itself. Rabbi Tanḥum said that Rav Asi said: One who erred and did not mention the might of the rains in the blessing on the revival of the dead, we require him to return to the beginning of the prayer and repeat it. However, one who erred and failed to recite the request for rain in the blessing of the years, we do not require him to return to the beginning of the prayer and repeat it because he can recite it in the blessing Who listens to prayer. And one who erred and failed to recite havdala in the blessing Who graciously grants knowledge, we do not require him to return to the beginning of the prayer and repeat it, as he can recite havdala over the cup of wine. Rather, both this statement of Rabbi Tanḥum and that statement in the Tosefta refer to one praying as an individual, and it is, nevertheless, not difficult. This case, where we do not require him to return to the beginning of the prayer and repeat it, refers to a case where he recalls his error before he reaches the blessing: Who listens to prayer, in which case he can ask for rain in that blessing.

