وعن ابن مسعود رضي الله عنه قال : قال رسول الله صلى الله عليه وآله وسلم : « سباب المسلم فسوق وقتاله كفر » . متفق عليه .
Ibn Mas'ud (RAA) narrated that the Messenger of Allah (ﷺ) said: insulting a Muslim is disobedience to Allah, and fighting with him is Kufr (disbelief).” Agreed upon.