Musnad Ahmad 658:99

Yazid ibn Harun narrated to us, Mis'ar informed us, from 'Adi ibn Thabit, from al-Bara' ibn 'Azib, who said: "I heard the Messenger of Allah, peace and blessings of Allah be upon him, reciting in the 'Isha prayer: 'By the Fig and the Olive' (Surah At-Tin)." He said: "And I have not heard a person with a better recitation than him."