The Book of Transactions (Kitab Al-Buyu`)
Muslim :: Book 10 : Hadith 3651
Abu Huraira (Allah be pleased with him) reported Allah's Messenger (may peace be upon him) as saying: He who bought foodgrain should not sell it until he had measured it. In the narration of Abu Bakr there the word is Ibta' instead of Ishtara.
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