1. [1/312] al-Kafi: A number of our companions from Ahmad b. Muhammad b. Khalid from Ahmad b. Muhammad b. Abi Nasr who said: A man came to Abi al-Hasan al-Ridha عليه السلام from behind the Balkh river and said: I will ask you a question - if you answer it in accordance to what I have (consider correct) then I will believe in your Imama. Abu al-Hasan عليه السلام said: Ask whatever you like. He said: Inform me about your Lord - when was He? How was He? Upon what thing was His reliance? Abu al-Hasan عليه السلام said: Allah Blessed and Elevated defined the ‘where’ when there was no ‘where’ and defined the ‘how’ when there was no ‘how’ and His reliance was on his Power. The man stood up, kissed his forehead and said: I bear witness that there is no god but Allah, that Muhammad is the Messenger of Allah, that Ali is the vicegerent of the Messenger of Allah صلى الله عليه وآله and the one who took charge of what the Messenger of Allah صلى الله عليه وآله was taking charge of after him, that you all are the truthful leaders and that you are the successor after them.
