Hadith 1303
Rafi’ bin Khadij and Sahl bin Abi Hathmah (may Allah be pleased with them) narrated that the Messenger of Allah (peace and blessings be upon him) forbade the sale of Muzabana, that is, selling dates still on the tree in exchange for dried dates, but he permitted it for the owners of ‘Araya. He also forbade selling fresh grapes in exchange for dried grapes, and selling any fruit by estimation. © Imam Tirmidhi says:
This hadith is Hasan Sahih Gharib through this chain.