Sahih al-Bukhari 1713
صحيح البخاري#1713Sahihحَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ، حَدَّثَنَا يَزِيدُ بْنُ زُرَيْعٍ، عَنْ يُونُسَ، عَنِ زِيَادِ بْنِ جُبَيْرٍ، قَالَ رَأَيْتُ ابْنَ عُمَرَ ـ رضى الله عنهما ـ أَتَى عَلَى رَجُلٍ، قَدْ أَنَاخَ بَدَنَتَهُ يَنْحَرُهَا، قَالَ ابْعَثْهَا قِيَامًا مُقَيَّدَةً، سُنَّةَ مُحَمَّدٍ صلى الله عليه وسلم. وَقَالَ شُعْبَةُ عَنْ يُونُسَ أَخْبَرَنِي زِيَادٌ.
Narrated Ziyad bin Jubair:I saw Ibn `Umar passing by a man who had made his Badana sit to slaughter it. Ibn `Umar said, "Slaughter it while it is standing with one leg tied up as is the tradition of Muhammad
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: 25:191