Sahih al-Bukhari 4166
صحيح البخاري#4166SahihNarrated `Abdullah bin Abi `Aufa:(Who was one of those who had given the Pledge of allegiance to the Prophet (ﷺ) beneath the Tree) When the people brought Sadaqa (i.e. Zakat) to the Prophet (ﷺ) he used to say, "O Allah! Bless them with your Mercy." Once my father came with his Sadaqa to him whereupon he (i.e. the Prophet) said. "O Allah! Bless the family of Abu `Aufa
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: 64:208