3 verses have
painful
in Edition Clear Qur'an by Talal Itani / Al-Fath (The Victory)

48:16Say to the Desert-Arabs who lagged behind, “You will be called against a people of great might; you will fight them, unless they submit. If you obey, God will give you a fine reward. But if you turn away, as you turned away before, He will punish you with a painful punishment.”

48:17There is no blame on the blind, nor any blame on the lame, nor any blame on the sick. Whoever obeys God and His Messenger—He will admit him into gardens beneath which rivers flow; but whoever turns away—He will punish him with a painful punishment.

48:25It is they who disbelieved, and barred you from the Sacred Mosque, and prevented the offering from reaching its destination. Were it not for faithful men and faithful women, whom you did not know, you were about to hurt them, and became guilty of an unintentional crime. Thus God admits into His mercy whomever He wills. Had they dispersed, We would have punished those who disbelieved among them with a painful penalty.