Musnad Ahmad 652:63

'Affan narrated to us, Abu 'Awanah narrated to us, from Ibrahim ibn Muhammad ibn al-Muntashir, from his father, from Habib ibn Salim, from al-Nu'man ibn Bashir, who said: "The Messenger of Allah, peace and blessings of Allah be upon him, used to recite in the two 'Eids and on Friday: '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). And sometimes they would coincide on one day, so he would recite them both." And Abu 'Awanah said: "And sometimes two 'Eids would coincide on one day."