Sahih al-Bukhari 1621
صحيح البخاري#1621SahihNarrated 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
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 25:106