Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both) says that the Messenger of Allah (peace and blessings be upon him) forbade "muzabanah, muhaqalah, mukhabarah (renting out land in exchange for a third or a quarter of the produce), and selling fruits before they ripen."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10601