Sahih al-Bukhari 739
صحيح البخاري#739Sahihحَدَّثَنَا عَيَّاشٌ، قَالَ حَدَّثَنَا عَبْدُ الأَعْلَى، قَالَ حَدَّثَنَا عُبَيْدُ اللَّهِ، عَنْ نَافِعٍ، أَنَّ ابْنَ عُمَرَ، كَانَ إِذَا دَخَلَ فِي الصَّلاَةِ كَبَّرَ وَرَفَعَ يَدَيْهِ، وَإِذَا رَكَعَ رَفَعَ يَدَيْهِ، وَإِذَا قَالَ سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ. رَفَعَ يَدَيْهِ، وَإِذَا قَامَ مِنَ الرَّكْعَتَيْنِ رَفَعَ يَدَيْهِ. وَرَفَعَ ذَلِكَ ابْنُ عُمَرَ إِلَى نَبِيِّ اللَّهِ صلى الله عليه وسلم. رَوَاهُ حَمَّادُ بْنُ سَلَمَةَ عَنْ أَيُّوبَ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ عَنِ النَّبِيِّ صلى الله عليه وسلم. وَرَوَاهُ ابْنُ طَهْمَانَ عَنْ أَيُّوبَ وَمُوسَى بْنِ عُقْبَةَ مُخْتَصَرًا.
Narrated Nafi`:Whenever Ibn `Umar started the prayer with Takbir, he used to raise his hands: whenever he bowed, he used to raise his hands (before bowing) and also used to raise his hands on saying, "Sami`a l-lahu liman hamidah", and he used to do the same on rising from the second rak`a (for the 3rd rak`a). Ibn `Umar said: "The Prophet (ﷺ) used to do the same
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 10:133