Sahih al-Bukhari 5897
صحيح البخاري#5897Sahihحَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا سَلاَّمٌ، عَنْ عُثْمَانَ بْنِ عَبْدِ اللَّهِ بْنِ مَوْهَبٍ، قَالَ دَخَلْتُ عَلَى أُمِّ سَلَمَةَ فَأَخْرَجَتْ إِلَيْنَا شَعَرًا مِنْ شَعَرِ النَّبِيِّ صلى الله عليه وسلم مَخْضُوبًا.
Narrated `Uthman bin `Abdullah bin Mauhab:I went to Um Salama and she brought out for us some of the dyed hair of the Prophet
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: 77:114