Is the one who rules by other than what Allah has revealed a disbeliever on account of that?

Question:
He says: Honorable Shaykh, may Allah grant you success, is the one who rules by other than what Allah has revealed a disbeliever on account of that, or is it necessary that he considers it permissible?

Answer:
This is a detail mentioned by the scholars. If he considers it permissible, saying there is no harm in it, then he is a disbeliever in major kufr (disbelief). Or if he holds that ruling by other than Allah is equal to ruling by Allah, that he is free to choose whether to rule by the Qur'an or by the law, then he is also a disbeliever. This is kufr (disbelief) against Allah the Exalted. But if he rules by other than what Allah has revealed while believing that it is obligatory to rule by what Allah has revealed and that it is not permissible to rule by other than that, yet he does this out of worldly greed, for the sake of a job, or due to a desire in his soul, then this is considered misguidance, and it is minor kufr (disbelief). It is kufr (disbelief) in any case, but it becomes major or minor according to the person's circumstances. Yes.