Sahih al-Bukhari 2968
صحيح البخاري#2968SahihNarrated Anas bin Malik:Once there was a feeling of fright at Medina, so Allah's Messenger (ﷺ) rode a horse belonging to Abu Talha and (on his return) he said, "We have not seen anything (fearful), but we found this horse very fast
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: 56:177