Related for Berakhot 45:4

ועד כמה אמר רב ששת עד פרסה איכא דמתני לה אמתניתא במה דברים אמורים כשאין יכול לעמוד על עצמו אבל אם יכול לעמוד על עצמו תפלתו תפלה ועד כמה אמר רב זביד עד פרסה

But for how long [must one be able to contain himself before venturing to say the Tefillah]? Rab Sheshet said : [Sufficient time to enable one to walk] a Parsah. There are some who make [this statement of Rab Zebid] a part of the Baraita [quoted above ; thus :] Of what does this speak? Of a case where a man is unable to contain himself; but if he is able to contain himself, his Tefillah is valid. But for how long [must one be able to contain himself before venturing to say the Tefillah]? Rab Zebid said : [Sufficient time to enable one to walk] a Parsah.

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