Sahih al-Bukhari 999
صحيح البخاري#999SahihNarrated Sa`id bin Yasar:I was going to Mecca in the company of `Abdullah bin `Umar and when I apprehended the approaching dawn, I dismounted and offered the witr prayer and then joined him. `Abdullah bin `Umar said, "Where have you been?" I replied, "I apprehended the approaching dawn so I dismounted and prayed the witr prayer." `Abdullah said, "Isn't it sufficient for you to follow the good example of Allah's Messenger (ﷺ)?" I replied, "Yes, by Allah." He said, "Allah's Messenger (ﷺ) used to pray witr on the back of the camel (while on a journey)
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: 14:10