Sahih Muslim
The Book of Transactions (Kitab Al-Buyu)
Book Number: 010 / Hadith Number: 3782
Abu Huraira (Allah be pleased with him) reported Allah's Messenger (may peace be upon him) as saying: He who found his property intact with a person (who bought it but who later on) became insolvent (or a person who became insolvent), he (the seller) is entitled to get it more than anyone else. '