Musannaf Ibn Abi Shayba 13:1747

Abu Bakr narrated to us, he said: Ibn Abi Za’idah narrated to us, from Hisham, from Ibn Sirin, from Shurayh, who said: Whoever gives for the sake of maintaining ties of kinship, or relationship, or kindness, or a right, then his gift is valid. And the one who is sought after for his goodness is rewarded for his gift, or it is returned to him.