Al-Kāfi
Hadith 13444ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنْ عَمْرِو بْنِ عُثْمَانَ الْخَزَّازِ عَنِ الْمُفَضَّلِ بْنِ صَالِحٍ عَنْ زَيْدٍ الشَّحَّامِ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) فِي رَجُلٍ شُبِّهَ عَلَيْهِ وَلَمْ يَدْرِ وَاحِدَةً سَجَدَ أَمْ ثِنْتَيْنِ قَالَ فَلْيَسْجُدْ أُخْرَى.
4. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from ‘Amr ibn ‘Uthman al-Khazzaz from al-Mufaddal ibn Salih from Zayd al-Shahham who has said the following: “About a man who doubts and does not know if he has performed one or two Sajdah (prostrations), abu ‘Abd Allah (a.s.), has said, ‘He performs one more Sajdah (prostration).”’