It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "By the One in whose hand is the soul of Muhammad! If I had gold equal to (Mount) Uhud, I would love that three nights should not pass over me while I still had a single dinar of it and could find someone to accept it, except something I keep aside for a debt I owe."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الأيمان / 19810