Musnad Abu Ya'la al-Mawsili 3:173

Uthman ibn Abi Shaybah narrated to us, Imran ibn Muhammad ibn Abi Layla narrated to us, from his father, from Abd al-Karim, from Abdullah ibn al-Harith, from Ibn Abbas, from Ali ibn Abi Talib, who said: Meat of game was brought to the Prophet, peace and blessings of Allah be upon him, while he was in the state of ihram, and he did not eat it.