مصنف ابن ابي شيبه
Musannaf Ibn Abi Shaybah
سجود السهو والعمل في الصلاةProstration of Forgetfulness and Actions in Salah
في الرجل يصلي (فلا يدري) زاد أو نقصIf Someone Prayed but Does Not Know How Many Rak‘ahs He Prayed, What Should He Do?
Hadith 4473
٤٤٧٣ - حدثنا عبدة عن يحيى (بن سعيد) (١) عن سالم قال: إذا شك فلم يدر (أثلاثا) (٢) صلى أم أربعا فليرم بالشك (ويسجد) (٣) سجدتين.
Hazrat Salim says that if someone is in doubt whether he has prayed three rak‘ahs or four, he should free himself from doubt and perform sajdah sahw. Yahya bin Sa‘id says that I mentioned this statement to Hazrat Qasim, so he said, "I also say the same, I also say the same."
