حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ حَدَّثَنَا شُعْبَةُ عَنْ مَنْصُورٍ قَالَ شُعْبَةُ کَتَبَ إِلَيَّ وَقَرَأْتُهُ عَلَيْهِ قَالَ أَخْبَرَنِي إِبْرَاهِيمُ عَنْ عَلْقَمَةَ عَنْ عَبْدِ اللَّهِ قَالَ صَلَّی رَسُولُ اللَّهِ صَلَّی اللَّهُ عَلَيْهِ وَسَلَّمَ صَلَاةً لَا نَدْرِي أَزَادَ أَوْ نَقَصَ فَسَأَلَ فَحَدَّثْنَاهُ فَثَنَی رِجْلَهُ وَاسْتَقْبَلَ الْقِبْلَةَ وَسَجَدَ سَجْدَتَيْنِ ثُمَّ سَلَّمَ ثُمَّ أَقْبَلَ عَلَيْنَا بِوَجْهِهِ فَقَالَ لَوْ حَدَثَ فِي الصَّلَاةِ شَيْئٌ لَأَنْبَأْتُکُمُوهُ وَإِنَّمَا أَنَا بَشَرٌ أَنْسَی کَمَا تَنْسَوْنَ فَإِذَا نَسِيتُ فَذَکِّرُونِي وَأَيُّکُمْ مَا شَکَّ فِي الصَّلَاةِ فَلْيَتَحَرَّ أَقْرَبَ ذَلِکَ مِنْ الصَّوَابِ فَيُتِمَّ عَلَيْهِ وَيُسَلِّمَ وَيَسْجُدَ سَجْدَتَيْنِ
ابن ماجہ · Hadith 1211
It was narrated that 'Abdullah said: "The Messenger of Allah SAW offered prayer, and I am not sure whether he did something extra or omitted something. He asked, and we told him, so he turned to face the Qiblah and prostrated twice, then he said the Salam. Then he turned to face us and said: 'If any new command had been revealed concerning the prayer, I would certainly have told you. But I am only human and I forget and you forget. If I forget, then remind me. And if anyone of you is uncertain about the prayer, let him do what is closest to what is correct, then complete the prayer, say the Salam and prostrate twice."
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020