Musannaf Ibn Abi Shayba 3:3219

Abu Amir al-Aqdi narrated to us, from al-Zubayr ibn Abd Allah ibn Ruhaymah, who said: I heard Umar ibn Abd al-Aziz on the day of Fitr delivering a sermon. He said: "Indeed, this is a day in which there should have been some food and some drink, so [take] some food and some drink."