Sahih al-Bukhari 1726
صحيح البخاري#1726Sahihحَدَّثَنَا أَبُو الْيَمَانِ، أَخْبَرَنَا شُعَيْبُ بْنُ أَبِي حَمْزَةَ، قَالَ نَافِعٌ كَانَ ابْنُ عُمَرَ ـ رضى الله عنهما ـ يَقُولُ حَلَقَ رَسُولُ اللَّهِ صلى الله عليه وسلم فِي حَجَّتِهِ.
Narrated Ibn `Umar:Allah's Messenger (ﷺ) (got) his head shaved after performing his Hajj
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: 25:204