Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both) says that the Prophet (peace and blessings be upon him) "forbade selling fruit for years ahead."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10608
Nafi narrates from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) "also forbade the sale involving deception (gharar)."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10609