حَدَّثَنَا أَحْمَدُ بْنُ حَنْبَلٍ حَدَّثَنَا إِسْمَعِيلُ يَعْنِي ابْنَ إِبْرَاهِيمَ عَنْ أَيُّوبَ عَنْ نَافِعٍ عَنْ ابْنِ عُمَرَ رَفَعَهُ قَالَ إِنَّ الْيَدَيْنِ تَسْجُدَانِ کَمَا يَسْجُدُ الْوَجْهُ فَإِذَا وَضَعَ أَحَدُکُمْ وَجْهَهُ فَلْيَضَعْ يَدَيْهِ وَإِذَا رَفَعَهُ فَلْيَرْفَعْهُمَا
سنن ابودوٗد · Hadith 893
Abu Hurairah reported the Messenger of Allah ﷺ as saying; when you come to pray while we are prostrating ourselves, you must prostrate yourselves, and do not reckon it anything (rak’ah) he has been present at the prayer.
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020