Muhammad b. al-Hasan رضي الله عنه narrated to us. He said: Al-Hasan b. Matil al-Daqqaq narrated to us. He said: Muhammad b. al-Husayn b. Abi’l Khattab narrated to us. He said: Muhammad b. Sinan narrated to us from Abi’l Jarud Ziyad b. al-Mundhir from Abi Ja`far Muhammad b. `Ali al-Baqir عليه السلام. He said: I heard Jabir b. `Abdullah al-Ansari say: The Messenger of Allah صلى الله عليه وعلى آله وسلم was in the house of Umm Ibrahim one day, and a delegation of his companions was with him. `Ali b. Abi Talib عليه السلام came forward. When the Prophet صلى الله عليه وعلى آله وسلم saw him, he said: O people! The best of people after me has come forward to you. He is your Master. Obedience to him is an obligation, just like obedience to me. Disobeying him is prohibited, just like disobeying me. O people! I am the House of Wisdom and `Ali is its Key, and the house cannot be sought except by the key. He who alleges to love me yet hates `Ali has lied.