Musnad Ahmad 658:60

Ibn Numayr narrated to us, Yahya bin Sa’id narrated to us, from ‘Adi bin Thabit, from Al-Bara’ bin ‘Azib: "That he prayed the last Isha prayer behind the Messenger of Allah, peace and blessings of Allah be upon him, and he recited 'By the Fig and the Olive' (Surah At-Tin)."