Musannaf Ibn Abi Shayba 13:1277

Abu Bakr narrated to us, he said: Ibn 'Uyaynah narrated to us, from 'Amr, who heard Salim saying: Rafi' ibn Khadij increased [the burden] upon himself, [saying]: "By Allah, we will certainly lease it [the land] for rent, just as camels are leased."