Musnad Ahmad 26:855

Muhammad ibn Ja'far narrated to us, Shu'bah narrated to us, from Sulayman, from Abu Wa'il, from Abdullah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "A word, and I will say another: 'Whoever dies while setting up a rival to Allah, Allah will cause him to enter the Fire.'" And Abdullah said: "And I say: Whoever dies while not setting up a rival to Allah, Allah will cause him to enter Paradise."