It is narrated from Sayyiduna Samurah bin Jundub (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "When something belonging to one of you is lost or stolen, and he finds it with some man, then he has more right to it, and the buyer will go back to the seller and take back his price."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب التفليس / 11278
Hadith Gradingمحدثین:مسند احمد 4/222، ابن ماجه 2331