وَعَنْهُ أَيْضًا قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ سِبَابُ الْمُسْلِمِ أَخَاهُ فُسُوقٌ وَقِتَالُهُ كُفْرٌ وَحُرْمَةُ مَالِهِ كَحُرْمَةِ دَمِهِ
Sayyiduna Ibn Mas'ud (may Allah be pleased with him) also narrates that the Messenger of Allah (peace and blessings be upon him) said: To revile a Muslim is wickedness and to fight him is disbelief, and the sanctity of a Muslim is like the sanctity of his blood.