Musannaf Ibn Abi Shayba 13:2710

Abu Bakr narrated to us, he said: Waki’ narrated to us, he said: Sufyan narrated to us, from Mansur ibn Safiyyah, from Sa’id ibn Jubayr, he said: "A man gives [a gift] so that he may be rewarded for it." "And whatever you give for interest to increase within the wealth of people will not increase with Allah."