Musannaf Ibn Abi Shayba 3:3357

Yazid ibn Harun narrated to us, he said: Umarah al-Saydalani informed us, from a freed slave of Anas—whom he named—who said: I arrived with Anas on the day of Eid until we reached al-Zawiyah. There, a freed slave of his was reciting during the Eid [prayer]: "Glorify the name of your Lord, the Most High" and "Has there reached you the report of the Overwhelming?" Anas said: "They are indeed the two surahs that the Messenger of Allah, may Allah bless him and grant him peace, used to recite."