Ibn Umar (may Allah be pleased with them both) said: We used to practise mukhabarah (giving land for a share of the crop) and did not consider it wrong, until Rafi' bin Khadij claimed that the Prophet (peace and blessings be upon him) had forbidden it, so we abandoned it because of what he said.
Hadith Referenceالمعجم الكبير للطبراني / باب الراء / 4234