Sahih al-Bukhari 5512
صحيح البخاري#5512Sahihحَدَّثَنَا قُتَيْبَةُ، حَدَّثَنَا جَرِيرٌ، عَنْ هِشَامٍ، عَنْ فَاطِمَةَ بِنْتِ الْمُنْذِرِ، أَنَّ أَسْمَاءَ بِنْتَ أَبِي بَكْرٍ، قَالَتْ نَحَرْنَا عَلَى عَهْدِ رَسُولِ اللَّهِ صلى الله عليه وسلم فَرَسًا فَأَكَلْنَاهُ. تَابَعَهُ وَكِيعٌ وَابْنُ عُيَيْنَةَ عَنْ هِشَامٍ فِي النَّحْرِ.
Narrated Asma' bint Abu Bakr:We slaughtered a horse (by Nahr) during the lifetime of Allah's Messenger (ﷺ) and ate it
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: 72:38