مصنف ابن ابي شيبه
Musannaf Ibn Abi Shaybah
سجود السهو والعمل في الصلاةProstration of Forgetfulness and Actions in Salah
من قال إذا (شك) فلم يدر كم صلى أعادThose Who Say That If There Is Doubt About the Number of Rak‘ahs, Salah Must Be Repeated
Hadith 4487
٤٤٨٧ - حدثنا حفص عن عاصم عن الشعبي.
Hazrat Sha'bi and Hazrat Sa'id bin Jubair state that if a person finishes the prayer and does not know whether he has prayed an odd or even number of units, then he should repeat the prayer.
