Musnad Ahmad 32:1143

Yazid narrated to us, Hisham informed us, from Yahya—meaning Ibn Abi Kathir—from Anas ibn Malik, that the Prophet, peace and blessings of Allah be upon him, used to say when he broke his fast with some people: "The fasting have broken their fast with you, the righteous have eaten your food, and the angels have descended upon you."