Musannaf Ibn Abi Shayba 16:283

Abu Bakr narrated to us, he said: Al-Hasan ibn Musa narrated to us, from Hammad ibn Salamah, from ‘Ata’ ibn al-Sa’ib, from Sa’id ibn Jubayr, that when he finished his food, he would say: "O Allah, You have satisfied and quenched, so make it wholesome for us. You have provided for us and increased, so grant us more and make it good."