If one was interrupted during prayer, must one return to the beginning or only to where one left off?

PrayerInterruptions

Synopsis

If one waited long enough during the interruption to complete the entire prayer, one must return to the beginning. Otherwise, one returns to the beginning of the blessing in which the interruption occurred. Special rules apply for the first three and last blessings.

Rishonim
Early Acharonim
Late Acharonim
Lenient
Strict
Lesser cited
Major authority

Discussion

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