If one recited Shema or prayed within four amot of a garf or avit, must one repeat it?

PrayerShema

Synopsis

The Mishnah Berurah rules that if one prayed within four amot of an avit found afterward in range, one must repeat — but only if the location was one where there was reason to suspect its presence from the start. If found within melo einav (in front), one need not repeat b'dieved.

Late Acharonim
Lenient
Strict
Lesser cited
Major authority

Discussion

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