There I met some theologians but none of them was able to...

There I met some theologians but none of them was able to establish for me that the One, namely Allah is One who has no second, not other than Him standing through his oneness. May I question you? (Umrān) al-Sābii put forth his deep question, and (said) that the (religious) scholars of Kūfa, Basrah, Syria (Shām) and al-Jazira were not able to answer it. He asked the Imām to answer it.

The Imām smiled at him, saying: If there is (a person called) Umrān al-Sābii among the group (of the people), then you are he. I am he, replied Umrān. Umrān, question (me). You must be just. Beware of nonsense and injustice, declared the Imām. (Umrān) al-Sābii bowed his head, and then he said to the Imām with politeness and magnification: By Allah, my…