عَنِ ابْنِ عُمَرَ رَضِيَ اللَّهُ عَنْهُ رَفَعَهُ قَالَ: إِنَّ الْيَدَيْنِ تَسْجُدَانِ كَمَا يَسْجُدُ الْوَجْهُ فَإِذَا وَضَعَ أَحَدُكُمْ وَجْهَهُ فَلْيَضَعْ يَدَيْهِ وَإِذَا رَفَعَهُ فَلْيَرْفَعْهُمَا
It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Verily, the hands also prostrate just as the face does, therefore when any one of you places his face for prostration, he should also place his hands, and when he lifts it, he should also lift them.