Sahih al-Bukhari 207
صحيح البخاري#207Sahihحَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، قَالَ أَخْبَرَنَا مَالِكٌ، عَنْ زَيْدِ بْنِ أَسْلَمَ، عَنْ عَطَاءِ بْنِ يَسَارٍ، عَنْ عَبْدِ اللَّهِ بْنِ عَبَّاسٍ،. أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم أَكَلَ كَتِفَ شَاةٍ، ثُمَّ صَلَّى وَلَمْ يَتَوَضَّأْ.
Narrated `Abdullah bin `Abbas:Allah's Messenger (ﷺ) ate a piece of cooked mutton from the shoulder region and prayed without repeating ablution
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: 4:73