What is the criterion for the permissibility that renders a major sin committer a disbeliever?

Question:
May Allah keep you safe and bless you. Honorable Shaykh, a questioner says: The scholars mentioned that one who commits a major sin is not declared a disbeliever for committing it unless he considers it permissible. What is the criterion for considering it permissible? Is it by the heart, by speech, by repeating the act, or by circumstance? And does this include channels of sorcery and divination, channels of prostitution and debauchery, and singing? May Allah reward you with good.

Answer:
Yes, one of the principles of the people of the Sunnah and the community is that one who commits a major sin less than shirk (associating partners with Allah) is not declared a disbeliever for it, nor does it take him out of Islam, but his faith is diminished by it, though he does not exit from faith. This is from the principles of the people of the Sunnah and the community, in contrast to the Khawarij and the Mu'tazilah. The Khawarij declare him a disbeliever for the major sin. The Mu'tazilah take him out of Islam but do not place him in disbelief, saying he is in the intermediate state between the two states. If he dies without repenting, he is eternally in the Fire, agreeing with the Khawarij in the Hereafter. This is misguidance, may Allah protect us from it. Opposing them are the Murji'ah, who say that sin does not harm alongside faith, and that one who commits a major sin less than shirk is a believer with complete faith. This is wrong. Rather, the people of the Sunnah and the community say that one who commits a major sin less than shirk is not declared a disbeliever, in contrast to the Khawarij, but his faith is diminished, in contrast to the Murji'ah. Thus, they disavow the methodology of two sects. This is in accordance with the Book and the Sunnah. This is the belief of the people of the Sunnah and the community regarding one who commits a major sin.
Except if he considers it permissible. If he considers riba (usury or interest) permissible, or zina (unlawful sexual intercourse) permissible, or khamr (intoxicants) permissible, and says it is halal (lawful), he is a disbeliever by consensus. I am a disbeliever by consensus. But if he commits it while hating it, knowing it is haram (forbidden), and acknowledging that it is haram, but commits it driven by desire.
Or by the deception of the self and Shaytan, while acknowledging the error, then he is not a disbeliever, but his faith is diminished. This is a very great matter. Yes.