Ruling 1164 — Prayer (Ṣalāh)

If a person doubts whether or not he said the salām of the prayer, in the event that he has started reciting taʿqībāt, or he has started to perform another prayer, or he has done something that invalidates prayers, he must dismiss his doubt. If his doubt arises before he has performed these, he must say the salām. If one doubts whether or not he said the salām correctly, he must dismiss his doubt no matter what stage of the prayer he is in.