Al-Ma'idah (The Table)
Surah 5 · Verse 38
And the male thief and the female thief, cut off their hands, a reward for that which they earned, an exemplary punishment from Allah, and Allah is Mighty, Wise.
Cutting off of the hand of a thief is to make others too fear such punishment, so that the society should be free of crime. Allah (SWT) forgives him who repents and amends, out of His mercy because He can do whatever He wills being the King and having power over everything.
