(6:82) Iman literally means 'affirmation,' that is,...

(6:82) Iman literally means 'affirmation,' that is, believing, and in the terminology of the seers means a particular kind of affirmation, an affirmation of that which is known for certain and has been declared by the Messenger, may peace be upon him.

The knowledge (ma'rifah) of the Prophet is inseparable from the knowledge of the Sustainer, the Powerful, the Knowing, the Living, the Perceiving, the Hearing, and the Seeing One, Who wills and speaks and has sent the Messengers and revealed the Qur'an to Muhammad Mustafa, may God bless him and his Household, and set forth the laws, the duties, and the sunan, the lawful and the unlawful, as affirmed by the consensus of the entire Ummah.

Hence faith consists of these matters, neither more nor less. For if lesser, it would not be faith at all, and if more, the increase will be a higher degree of faith, contiguous to faith. And the sign of belief is to know, to say, and to do that which should be known, said, and done and to refrain from…