Musannaf Ibn Abi Shayba 13:2473

Abu Bakr narrated to us, he said: Waki’ narrated to us, from Sufyan, from Ya’la ibn ‘Ata, from al-Qasim ibn ‘Abd Allah, who said: I asked Sa’d about renting land for gold and silver. He said: There is no harm in it; that is the lending of land.