11. To rule or judge by other than that which Allah revealed. This is of different types and the ruling differs depending on the beliefs and actions. Whoever rules by other than what Allah has revealed viewing it or believing it to be superior or better than Allah's sharia is considered a disbeliever by all the Muslims. Likewise, the one who substitutes the sharia with man-made laws and views that as permissible, even if he says that to rule by the sharia is better, is a disbeliever because he has made halaal what Allah has made haraam. If one rules as described following whims or in opposition to someone (i.e. not viewing it as equal, a substitute or superior as described above) he is considered a major sinner. [2:120, 3:85, 4:115, 5:3, 44, 49, 50, 33:36, 45:18, 58:22].