‏الصلاة : Hadeeth No:1166 Abu Sa'id al-Khudri reported: The Messenger of Allaah (sallAllaahu alayhi wa sallam) said: When any one of you is in doubt about his prayer and he does Dot know how much he has prayed, three or four (rak'ahs). he should cast aside his doubt and base his prayer on what he is sure of. then perform two...

‏الطهارة : Hadeeth No:503 This hadith has been narrated by Mus'ab b. Shaiba with the same chain of transmitters except for these words:" His father said: I forgot the tenth one."...