Sahih al-Bukhari 2999
صحيح البخاري#2999SahihNarrated Hisham's father:Usama bin Zaid was asked at what pace the Prophet (ﷺ) rode during Hajjat-ul-Wada`. He said, "He rode at a medium pace, but when he came upon an open way he would go at full pace
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: 56:208