Musannaf Ibn Abi Shayba 16:208

Abu Bakr narrated to us, he said: Ibn 'Uyaynah narrated to us, from al-Zuhri, who heard Abu Bakr ibn 'Ubayd Allah, from his grandfather, from the Prophet, peace and blessings of Allah be upon him, who said: "Indeed, the Shaytan eats with his left hand and drinks with his left hand. So if one of you eats, let him eat with his right hand, and let him drink with his right hand."