Sahih al-Bukhari 6192
صحيح البخاري#6192Sahihحَدَّثَنَا صَدَقَةُ بْنُ الْفَضْلِ، أَخْبَرَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، عَنْ شُعْبَةَ، عَنْ عَطَاءِ بْنِ أَبِي مَيْمُونَةَ، عَنْ أَبِي رَافِعٍ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ زَيْنَبَ، كَانَ اسْمُهَا بَرَّةَ، فَقِيلَ تُزَكِّي نَفْسَهَا. فَسَمَّاهَا رَسُولُ اللَّهِ صلى الله عليه وسلم زَيْنَبَ.
Narrated Abu Huraira:Zainab's original name was "Barrah," but it was said' "By that she is giving herself the prestige of piety." So the Prophet (ﷺ) changed her name to Zainab
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: 78:216