Musannaf Ibn Abi Shayba 23:8

Abu al-Ahwas narrated to us, from Mansur, from Rib'i, from a man from Banu Asad, from Ali, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "There are four things; a man will not find the taste of faith until he believes in them: [that there is] no god but Allah alone, and that I am the Messenger of Allah whom He sent with the truth, and that he will die and then be resurrected after death, and he believes in the decree, all of it."