Continuation of the definition of faith.

Faith must necessarily be accompanied by acceptance and submission; that is, one believes, then accepts, then submits to this faith. This is why it is said, "I have believed in it," and not "I have believed it." If faith were synonymous with mere belief, it would be correct to say "I have believed it," just as one says "I have believed him," correct? So, faith includes a meaning that goes beyond mere belief; rather, it is belief that encompasses acceptance and submission. For this reason, everyone knows, according to what has come in history, that Abu Talib was a believer in the Messenger of Allah (peace and blessings be upon him); he believed in him and saw that what he reported was as clear as the sun. He even affirmed this in his poems, saying:
They have surely known that our son is not a denier with us, nor does he concern himself with speaking falsehood.
He is not a denier, nor does he concern himself with speaking falsehood. So, he was a believer. He also said: "And I have surely known that the religion of Muhammad is the best of the religions of the people, a religion. If it were not for the fear of being blamed or the fear of being cursed, I would have seen me being lenient with that, making it clear." So, he was a believer, but his belief did not include acceptance and submission; he did not accept, nor did he submit. Do we say that he is a person of faith? No. So, faith necessarily requires acceptance and submission.