2 verses have
severe
in Edition Clear Qur'an by Talal Itani / Taa-Haa (Taa-Haa)

20:71He said, “Did you believe in him before I have given you permission? He must be your chief, who has taught you magic. I will cut off your hands and your feet on alternate sides, and I will crucify you on the trunks of the palm-trees. Then you will know which of us is more severe in punishment, and more lasting.”

20:127Thus We recompense him who transgresses and does not believe in the revelations of his Lord. The punishment of the Hereafter is more severe, and more lasting.