Musnad Abu Ya'la al-Mawsili 162:21

Masruq ibn al-Marzuban narrated to us, Hafs ibn Ghiyath narrated to us, from Ibn Jurayj, from ‘Ata’, from Ibn ‘Abbas, from al-Fadl ibn ‘Abbas, who said: I saw the Messenger of Allah, may Allah bless him and grant him peace, drink on the Day of ‘Arafah.