Sahih al-Bukhari 1621
صحيح البخاري#1621Sahihحَدَّثَنَا أَبُو عَاصِمٍ، عَنِ ابْنِ جُرَيْجٍ، عَنْ سُلَيْمَانَ الأَحْوَلِ، عَنْ طَاوُسٍ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ أَنَّ النَّبِيَّ صلى الله عليه وسلم رَأَى رَجُلاً يَطُوفُ بِالْكَعْبَةِ بِزِمَامٍ أَوْ غَيْرِهِ فَقَطَعَهُ.
Narrated Ibn `Abbas:The Prophet (ﷺ) saw a man performing Tawaf of the Ka`ba tied with a string or something else. So the Prophet cut that string
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: 25:106