in his epistle "The Examination and the Demonstration" from our master Abu Shu'ayb, from him is mercy, in the "Book of the Likeness and the Form"

And it is his saying: Every known name, and every attribute is other than the described, because you, by your intent, your mind, and your knowledge, know that that which the people say is Ali: He is Allah who manifests how He wills, He was not absent from His heaven by the witnessing of His earth, nor from His earth by the witnessing of His heaven.

So whoever claimed that he saw a part: he has divided Allah, and whoever said He is He by His essence on the basis that He is a body: he has resembled Him, limited Him, and described Him, and whoever said He is Allah, He manifested how He wills to whom He wills of His creation, neither described, nor a limitation, nor ceasing, and it is not decreed upon Him with a movement, nor a limit, nor a likeness, you demonstrated upon His form by His power, and whoever demonstrates upon His knowledge by His power and His form: he has become, by the help of Allah, upon the path of salvation.

So the Master Abu Shu'ayb, from him is peace, made us know: that Ali is the Essence, neither described, nor limited,