Musnad Abu Ya'la al-Mawsili 110:81

Zuhayr narrated to us, Ibn ‘Uyaynah narrated to us, from al-Hakam ibn Aban, from ‘Ikrimah, from Ibn ‘Abbas, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: "I asked Gabriel, 'Which of the two terms did Moses fulfill?'" He said: "The most complete and the most perfect of them."