Sahih al-Bukhari 2714
صحيح البخاري#2714Sahihحَدَّثَنَا أَبُو نُعَيْمٍ، حَدَّثَنَا سُفْيَانُ، عَنْ زِيَادِ بْنِ عِلاَقَةَ، قَالَ سَمِعْتُ جَرِيرًا ـ رضى الله عنه ـ يَقُولُ بَايَعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم فَاشْتَرَطَ عَلَىَّ وَالنُّصْحِ لِكُلِّ مُسْلِمٍ.
Narrated Jarir:When I gave the pledge of allegiance to Allah's Messenger (ﷺ) and he stipulated that I should give good advice to every Muslim
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: 54:3