Sahih al-Bukhari 2319
صحيح البخاري#2319SahihNarrated Abu Musa:The Prophet (ﷺ) said, "An honest treasurer who gives what he is ordered to give fully, perfectly and willingly to the person to whom he is ordered to give, is regarded as one of the two charitable persons
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: 40:18