مسند أحمد

It was narrated from Abu 'Ubaid the freed slave of ‘Abdur-Rahman bin 'Awf that he was present on Eid with 'Umar bin al Khattab. He ['Umar] prayed before delivering the khutbah, with no adhan or Iqamah. Then he gave the khutbah and said: O people, the Messenger of Allah (ﷺ) forbade fasting on these two days (i.e., the two Eids). On the first of them you break your fast and celebrate your festival, and on the second you eat from the meat of your sacrifices.

It was narrated that Sa'd Abu 'Ubaid, the freed slave of ‘Abdur-Rahman bin Azhar, said: I was present at Eid with 'Umar bin al Khattab... and he mentioned a similar hadeeth.