Sunan An-Nasa'i

Abdullah bin Abi Qatadah narrated from his father that:a man was brought to the Prophet for him to offer the funeral prayer, and he said: ""Pray for your companion, for he owes a debt."" Abu Qatadah said: "" I will pay it."" The Prophet said: ""In full?"" He said: ""In full."" So he prayed for him