It was narrated the Fadalah bin 'Ubaid said:"On the Day of Khaibar I bought a necklace containing gold and ggems for twelve Dinars. The I took it apart and found that it contatined more than twelve Dinars. Mentiion of that was made to the Prophet and he said: 'It should not be sold until it is taken apart

English translation · Sunan an-Nasa'i