Sahih al-Bukhari 5508
صحيح البخاري#5508SahihNarrates `Abdullah bin Mughaffal:While we were besieging the castle of Khaibar, Somebody threw a skin full of fat and I went ahead to take it, but on looking behind, I saw the Prophet (ﷺ) and I felt shy in his presence (and did not take it)
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: 72:34