He said:

“If it is asked: How do you know that reason provides proof and evidence?

The answer is: By setting out, for each issue, a rational demonstration whose examination leads to knowledge.

If it is asked: Why do you say that knowledge of Allah can be attained only through examining rational evidence?

The answer is: The proof is that the Book can validly be cited as evidence only once it is known to be the speech of Allah, the All-Wise. Knowledge of Allah, His wisdom, and the fact that this is His speech must therefore come first.

The Sunnah cannot establish knowledge of Him because it can validly be cited as evidence only once it is established to be the words of the Messenger of Allah, the All-Wise (may Allah bless him and grant him peace). Knowledge of Allah and His wisdom, and that this messenger is His Messenger, must therefore come first.

Consensus cannot establish knowledge of Allah because it can validly be cited as evidence only after it is known that Allah and His Messenger have attested to its authority as proof. Knowledge of Allah must therefore come first. Thus, knowledge of Allah cannot be acquired except through rational evidence.”

He said:

“If it is asked: What is the evidence whose examination leads to knowledge of Allah Most High?

The answer is: Your own self and all the other physical bodies you observe.

The line of reasoning by which