Do the noble verse and the narration of Ibn Abbas indicate a disagreement among the Sunnis regarding the non-excommunication of the perpetrator of a major sin and the Muslim’s eternal dwelling in Hellfire, and does this apply to the oppressive ruler who sheds blood without considering it permissible?

The Sunnis have agreed that major sins do not constitute apostasy, and that a disobedient believer does not exit the fold of Islam. The rulings of Islam apply to the perpetrator of major sins, and a believer is deemed wicked (fasiq) by their major sin, not an infidel (kafir) because of it. They also unanimously agreed on the permissibility of praying over anyone who dies from the people of the Qiblah, and that the disobedient among the people of the Qiblah are commanded to observe all religious laws. A Muslim killer does not become an infidel, nor does he remain in Hell eternally like the infidels, but he is threatened with Hell, and the execution of this threat is subject to the will of Allah the Almighty.