Musnad Abu Ya'la al-Mawsili 1:82

Musa ibn Muhammad ibn Hayyan narrated to us, Abu Dawud narrated to us, Abd al-Wahid ibn Zayd narrated to us, from Aslam, from Murrah, from Zayd ibn Arqam, who said: I heard Abu Bakr say that the Prophet, peace and blessings of Allah be upon him, said: "No body that has been nourished with the unlawful shall enter Paradise."