Musnad Ahmad 658:226

Yazid and Ibn Numayr narrated to us, they said: Yahya narrated to us, from ‘Adi ibn Thabit, from al-Bara’ ibn ‘Azib, who said: Yazid said that ‘Adi ibn Thabit informed him that al-Bara’ ibn ‘Azib informed him: That he prayed the Isha prayer behind the Messenger of Allah (may Allah bless him and grant him peace). Ibn Numayr said: "The latter [prayer]." He recited in it: "By the Fig and the Olive."