Sahih al-Bukhari 5842
صحيح البخاري#5842Sahihحَدَّثَنَا أَبُو الْيَمَانِ، أَخْبَرَنَا شُعَيْبٌ، عَنِ الزُّهْرِيِّ، قَالَ أَخْبَرَنِي أَنَسُ بْنُ مَالِكٍ، أَنَّهُ رَأَى عَلَى أُمِّ كُلْثُومٍ ـ عَلَيْهَا السَّلاَمُ ـ بِنْتِ رَسُولِ اللَّهِ صلى الله عليه وسلم بُرْدَ حَرِيرٍ سِيَرَاءَ.
Narrated Anas bin Malik:that he had seen Um Kulthum, the daughter of Allah's Messenger (ﷺ) , wearing a red silk garment
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: 77:59