Umdat al Salik/Sharia Manual a1.0 page 2 The Knowledge of Good and Bad
a1.4 … good of the acts of those morally responsible is what the Lawgiver (Allah or His Messenger) has indicated is good by permitting it or asking it be done. Bad is what the Lawgiver has indicated is bad by asking it not be done. The good is not what reason considers good, nor the bad what reason considers bad. The measure of good and bad is the Sacred Law, NOT reason.
a4.2 page 9 As for the basic obligations ofIslam, and what relates to the tenets of faith, it is adequate for one to believe in everthing brought by the Messenger of Allah and to credit it with absolute conviction free on any doubt. Whoever does this is not obliged to learn the evidences of the scholastic theologians.
What befits the common people and vast majority of those learning or possessing Sacred knowledge is to refrain from discussing the subtleties of scholastic theology, lest corruption difficult to eliminate find its way into their basic religious convictions. Rather, it is fitter for them to confine themselves to contentment with the above-mentioned with absolute certainty.
a7.2 page 14 Unlawful Knowledge includes:
(1) learning sorcery
(6) and anything that is a means to create doubts (n: eternal truths). Such things vary in thgeir degree of unlawfulness.
a7.3 Offensive knowledge includes such things as post classical poetry which contains romance and uselessness.
025.1 page 638-9 THE OBLIGATORY CHARACTER OF THE CALIPHATE
(Mawardi:) The reason the office of supreme leadership has been established in Sacred Law … Scholars differ as to whether its obligatory character is established through reason or through Revealed Law. Some say that it is obligatory by human reason, because of the agreement of rational individuals to have a leader to prevent them from wronging one another and to come between them when conflict and arguments arise…. Others hold that it is obligatory not through reason, but rather through Sacred Law, for the caliph performs functions that human reason might not otherwise deem ethically imperative, and which are not entailed by reason alone, for reason are not entailed by reason alone, for reason merely requires that rational beings refrain from reciprocal oppression and strife, such that each individual conform with the demands of fairness in behaving towards others with justice and social cohesion, each evaluating their course with their own mind, not anyone else’s, whereas Sacred Law stipulates that human concerns be consigned to the person religiously responsible for them. Allah Mighty and Majestic says.
“You who believe, obey Allah and obey the Prophet and those of authority among you” (Koran 4:59).