Assalamualaikum The Prophet(ﷺ) said,Abusing a Muslim is Fusuq (an evil doing) and killing him is Kufr (disbelief).ik its minor disbelief which doesnt take a person out of islam,but what here kufr really mean? Can you please explain this ustadh? جزاكم الله خير الجزاء في الدنيا والآخرة

Ustadh AbdulAziz al-Haqqan

Meaning if he thinks it is lawful it is major kufr, if not then it is minor kufr and one of the gravest most abhorrent of sins.