Musnad Abu Ya'la al-Mawsili 162:4

Sulayman ibn Dawud al-Shadhakuni Abu Ayyub narrated to us, Hafs ibn Ghiyath narrated to us, from Ibn Jurayj, from ‘Ata’, from Ibn ‘Abbas, from al-Fadl ibn ‘Abbas: That the Prophet, peace and blessings of Allah be upon him, broke his fast at ‘Arafah.