Hadith.5406 - Muhammad ibn Abi Abdullah Al-Kufi narrated from Musa ibn Imran Al-Nakhai from his uncle Al-Husayn ibn Yazid from Al-Hasan ibn Ali ibn Abi Hamzah from his father from Yahya ibn Abi Al-Qasim from Imam Jafar ibn Muhammad Al-Sadiq عليه السلام from his father, Imam Muhammad ibn Ali Al-Baqir عليه السلام, from his grandfather Imam Hussain ibn Ali عليه السلام, peace be upon them all, who said: The Messenger of Allah سبحانه وتعالى (peace be upon him and his family) said: "The Imams عليه السلام after me are twelve. The first of them is Ali ibn Abi Talib عليه السلام, and the last of them is the Riser (Al-Qaʾim عليه السلام). They are my successors, my trustees, my guardians, and the proofs of Allah سبحانه وتعالى over my nation after me. Whoever acknowledges them is a believer, and whoever denies them is a disbeliever."