Sahih al-Bukhari 385
صحيح البخاري#385SahihNarrated Anas bin Malik:We used to pray with the Prophet (ﷺ) and some of us used to place the ends of their clothes at the place of prostration because of scorching heat
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: 8:37