It is narrated from Jabir (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) forbade mukhabarah, muhaqalah, and muzabanah. Muhaqalah is when a person sells wheat that is still in the ear for one hundred sa’ (a measure) of cleaned wheat. Muzabanah is when dates on the date-palm trees are sold for one hundred sa’ of dried dates. Mukhabarah is when land is given on sharecropping for a third or a fourth of the produce.
Hadith Referenceمسند الإمام الشافعي / كتاب البيوع / 1414