Why is it that the punishment lowering clothes below the ankle is Hellfire?

All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger. We ask Allaah to exalt his mention as well as that of his family and all his companions.

We have already issued Fatwa 84967 on the ruling of wearing garments lower than the ankle, so please refer to it. As regards why the person who wears his garment lower than the ankle is punished in Hellfire, the answer is that he deserves such punishment because he disobeyed Allaah, and whoever disobeys Allaah deserves to be punished. Allaah punishes his slaves as He wishes, His Ruling is just, and His Decree cannot be overruled, and He is not to be questioned about what He does. Allaah Says (what means): {He is not to be questioned about what He does, but they will be questioned.}[Quran 21:23].

However, if what you mean is why is it that the punishment will be below the ankle and not somewhere else, the answer is that the punishment corresponds with the type of disobedience, since he disobeyed Allaah by wearing garment below the ankle, the punishment will be in the same place where he disobeyed Allaah; the system of punishment or reward is according to the type of action performed.

Allaah Knows best.