Sayyiduna Abdullah bin Umar (may Allah be pleased with them) narrated that the Prophet Muhammad (peace and blessings be upon him) forbade muzabanah, that is, selling the fruits of a garden—if they are dates—in exchange for measured dried dates, or if they are grapes, selling them for measured dried grapes, or if it is a crop, selling it for measured grain. He forbade all such types of transactions.