Sahih Muslim Book - 4, Hadith - 896

حَدَّثَنَا زُهَيْرُ بْنُ حَرْبٍ حَدَّثَنَا عَفَّانُ حَدَّثَنَا هَمَّامٌ حَدَّثَنَا مُحَمَّدُ بْنُ جُحَادَةَ حَدَّثَنِي عَبْدُ الْجَبَّارِ بْنُ وَائِلٍ عَنْ عَلْقَمَةَ بْنِ وَائِلٍ وَمَوْلًى لَهُمْ أَنَّهُمَا حَدَّثَاهُ عَنْ أَبِيهِ وَائِلِ بْنِ حُجْرٍ أَنَّهُ رَأَى النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ رَفَعَ يَدَيْهِ حِينَ دَخَلَ فِي الصَّلَاةِ كَبَّرَ وَصَفَ هَمَّامٌ حِيَالَ أُذُنَيْهِ ثُمَّ الْتَحَفَ بِثَوْبِهِ ثُمَّ وَضَعَ يَدَهُ الْيُمْنَى عَلَى الْيُسْرَى فَلَمَّا أَرَادَ أَنْ يَرْكَعَ أَخْرَجَ يَدَيْهِ مِنْ الثَّوْبِ ثُمَّ رَفَعَهُمَا ثُمَّ كَبَّرَ فَرَكَعَ فَلَمَّا قَالَ سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ رَفَعَ يَدَيْهِ فَلَمَّا سَجَدَ سَجَدَ بَيْنَ كَفَّيْهِ.

It was narrated that 'Alqamah bin Wa'il, and a freed slave of theirs, narrated from his father, Wa'il bin Hujr, that he saw the Prophet (s.a.w) raise his hands when he started the prayer, and say the Takbir - Hamam described it as being level with his ears - then he wrapped himself in his garment, and placed his right hand over his left. When he wanted to bow, he brought his hands out from his garment and raised them, then he said the Takbir and bowed. When he said, "Sami'a Allahu liman hamidah (Allah hears those who praise Him)," he raised his hands, and when he prostrated, he prostrated between his hands."