Musannaf Ibn Abi Shayba 13:1312

Abu Bakr narrated to us, he said: Abda bin Sulayman narrated to us, from Sa'id bin Abi Arubah, from Ya'la bin Hakim, from Sulayman bin Yasar, from Rafi' bin Khadij, he said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Whoever has land, let him cultivate it, or let his brother cultivate it. He shall not rent it out for a third, nor for a specified amount of food."