Musnad Ahmad 30:3431

Yazid narrated to us, Ibn Abi Dhi'b informed us, from al-Maqburi, from his father, from Abu Hurairah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Whoever does not abandon false speech, acting upon it, and ignorance, then Allah has no need for him to abandon his food and his drink."