Sayyiduna Abdur Rahman bin Awf (may Allah be pleased with him) said: Shall I not narrate to you the hadith which I myself heard from the Messenger of Allah (peace and blessings be upon him)? They said: Why not. He said: I bear witness that I heard the Messenger of Allah (peace and blessings be upon him) saying: Whoever performs prayer and doubts that it is deficient, he should continue praying until he begins to doubt that it is excessive.
Hadith Referenceالفتح الربانی / أبواب الأذ كار الواردة عقب الصلاة / 1982
Hadith Gradingمحدثین:ضعیف
Hadith Takhrij«اسناده ضعيف، اسماعيل بن مسلم المكي البصري متروك الحديث، قاله النسائي۔ أخرجه البزار: 997، وابويعلي: 855، والدارقطني: 1/ 369، والبيھقي: 2/ 332 ، (انظر مسند أحمد ترقيم الرسالة: 1689 ترقیم بيت الأفكار الدولية: 1689»
Brief Explanation
Benefits: … This hadith is weak, but its meaning is correct based on the following hadith: It is narrated from Sayyiduna Abdur Rahman ibn Awf radi Allahu anhu that the Messenger of Allah sallallahu alayhi wa sallam said: When someone has doubt in prayer and cannot determine whether he has prayed one rak‘ah or two, he should consider it as one; and if he is in doubt whether he has prayed two rak‘ahs or three, he should consider them as three, … … . (Hasan li-ghayrihi, Musnad Ahmad: 1656, Tirmidhi: 398, Ibn Majah: 1209)