If One Before Precautionary Prayer Realises That His Prayer Contained Incomplete Rak‘ats
Issue No.1090- If a person becomes certain before starting Precautionary prayer, that the prayer offered contained incomplete rak‘ats (for example, instead of four rak‘ats he had offered three rak‘ats), if he has still not committed an act which would invalidate the prayer, he should complete the prayer and also as an obligatory precaution, perform sajdah al-sahw for the undue salām. However, if he has committed a prayer invalidator, he should repeat the prayer.