Musannaf Ibn Abi Shayba 3:3359

Ibn Idris and Ibn 'Abbad narrated to us, from Shu'bah, from 'Adi ibn Thabit, from Sa'id ibn Jubayr, from Ibn 'Abbas, who said: The Messenger of Allah (may Allah bless him and grant him peace) went out on the day of Eid and prayed with the people, and he did not pray before it nor after it.