Narrated Fudalah bin Ubaid: At the battle of Khaibar I bought a necklace in which there were gold and pearls for twelve dinars. I separated them and found that its worth was more than twelve dinars. So I mentioned that to the Prophet ﷺ who said: It must not be sold till the contents are considered separately.
Hadith Referenceسنن ابي داود / كتاب البيوع / 3352
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح مسلم (1591)
Hadith Takhrij« انظر ما قبلہ، (تحفة الأشراف: 11027) (صحیح) »