حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا أَبُو عَامِرٍ، حَدَّثَنَا فُلَيْحُ بْنُ سُلَيْمَانَ، حَدَّثَنَا عَبَّاسُ بْنُ سَهْلٍ السَّاعِدِيُّ، قَالَ اجْتَمَعَ أَبُو حُمَيْدٍ وَأَبُو أُسَيْدٍ السَّاعِدِيُّ وَسَهْلُ بْنُ سَعْدٍ وَمُحَمَّدُ بْنُ مَسْلَمَةَ فَذَكَرُوا صَلاَةَ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ فَقَالَ أَبُو حُمَيْدٍ أَنَا أَعْلَمُكُمْ بِصَلاَةِ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ إِنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ قَامَ فَكَبَّرَ وَرَفَعَ يَدَيْهِ ثُمَّ رَفَعَ حِينَ كَبَّرَ لِلرُّكُوعِ ثُمَّ قَامَ فَرَفَعَ يَدَيْهِ وَاسْتَوَى حَتَّى رَجَعَ كُلُّ عَظْمٍ إِلَى مَوْضِعِهِ ‏.‏

‘Abbasbin Sahl As-Sa’di said: “Abu Humaid, Abu Usaid As-Sa’di, Sahlbin Sa’d, and Muhammad bin Maslamah came together and spoke abouttheprayer of the Messenger of Allah (PBUH). Abu Humaid said: ‘I amthemost knowledgeable of you about the prayer of the Messenger ofAllah(PBUH). The Messenger of Allah (PBUH) stood up and said AllahuAkbar,and raised his hands, then he raised them when he said AllahuAkbarfor Ruku’, then he stood up and raised his hands, and stoodstraightuntil every bone had returned to its place.’” Translation Not Available

Book Ref: Sunan Ibn Majah Book 5 Hadith 863
Web Ref:  Sunan Ibn Majah Vol 1 Book 5 Hadith 863