Narrated [Abu Hurairah (RA)]:

Allah's Messenger (ﷺ) said: "If anyone buys a grain he must not sell it till he weighs it." [Reported by Muslim].

وَعَنْهُ: أَنَّ رَسُولَ اَللَّهِ ‏- صلى الله عليه وسلم ‏-قَالَ: { مَنِ اِشْتَرَى طَعَاماً فَلَا يَبِعْهُ حَتَّى يَكْتَالَهُ } رَوَاهُ مُسْلِمٌ [1]‏ .‏