The Book of Transactions (Kitab Al-Buyu`)

Muslim :: Book 10 : Hadith 3864

Fadila b. 'Ubaid (Allah be pleased with him) reported: I bought on the day (of the Victory of Khaibar) a necklace for twelve dinars (gold coins). It was made of gold studded with gems. I separated (gold from gems) in it, and found (gold) of more (worth) than twelve dinars. I made a mention of it to Allah's Apostle (may peace be upon him), whereupon he said: It should not be sold unless it is separated.