Musnad Ahmad 799:140

Waki’ narrated to us, [saying] Mis’ar and Sufyan narrated to us, from Ma’bad ibn Khalid, from Zayd ibn ‘Uqbah, from Samurah ibn Jundub, from the Prophet (peace and blessings of Allah be upon him): "He used to recite in the two Eids: 'Glorify the name of your Lord, the Most High' (Surah Al-A’la), and 'Has there reached you the report of the Overwhelming?' (Surah Al-Ghashiyah)."