Sunan Ibn Majah — The Chapters on Charity — Hadith No: 2428
Translation
Hirmas bin Habib narrated from his father that his grandfather said:“I came to the Prophet (ﷺ) with a man who owed me money, and he said to me: 'Keep him.' Then he passed by me at the end of the day and said: 'What did your prisoner do, O brother of Banu Tamim?' ”