If One Doubts whether or Not He Has Forgotten a Sajdah or Tashahhud
Issue No.1111- If one doubts whether or not he has forgotten a sajdah or tashahhud, it is not obligatory to perform its qaḍā, but if he knows that he has forgotten one of them but he does not know which one, he should offer qaḍā for both of them and there is no problem in offering either of them first.