Musnad Ahmad 403:19

Abdullah ibn Ahmad said: Muhammad ibn Sulayman ibn Habib Luwayn narrated to us, he said: Hammad ibn Zayd narrated to us, from Salih ibn Kaysan, from Ubaydullah ibn Abdullah, from Ibn Abbas, from al-Sa’b ibn Jaththama, that the Prophet, peace and blessings of Allah be upon him, was traveling until, when he was at Waddan, a Bedouin gifted him the meat of game. He returned it and said: "We do not eat game."