Sahih al-Bukhari 1219
صحيح البخاري#1219Sahihحَدَّثَنَا أَبُو النُّعْمَانِ، حَدَّثَنَا حَمَّادٌ، عَنْ أَيُّوبَ، عَنْ مُحَمَّدٍ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ قَالَ نُهِيَ عَنِ الْخَصْرِ، فِي الصَّلاَةِ. وَقَالَ هِشَامٌ وَأَبُو هِلاَلٍ عَنِ ابْنِ سِيرِينَ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم.
Narrated Abu Huraira:It was forbidden to keep the hands on the hips during the prayer. (This is narrated by Abu Huraira from the Prophet)
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: 21:23