Clarification About "5 Haram Things"
Haq talfi and Ziyadti Usurpation and transgression are two fundamental categories. Under these categories, the major sins are mentioned. Shirk is against God, Zina is against humanity, and some other sins are mentioned in other places, like murder, usury, fasaad fi al Ard, etc. Shirk is kufr that is why the mushrikeen were called kafir because the reality of kufr is a denial of the facts. Quran has categorized forbidden things into three categories. Indeed, God directs you [in it] to justice, virtue and to give to the kin and stops you from lewdness, evil and rebelliousness. He counsels you so that you receive a reminder. (16: 90)