Sahih Muslim Book 10, Hadith Number 3782.

Chapter : The price of a dog, the sweets of a kahin, the earnings of a prostitute and the selling of a cat are all forbidden.

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.