Musnad Ahmad 1007:56

Muhammad ibn Ja‘far narrated to us, Shu‘bah narrated to us, he said: I heard ‘Uthman ibn ‘Abdullah ibn Mawhab narrating from ‘Abdullah ibn Abi Qatadah, from his father, that the Prophet, peace and blessings of Allah be upon him, was brought a man from the Ansar in order for him to pray over him. He said: "Pray over your companion, for he has a debt upon him." Abu Qatadah said: "It is upon me, O Messenger of Allah." He said: "With fulfillment?" He said: "With fulfillment." He said: So he prayed over him, and he only owed eighteen or nineteen dirhams.