He who disbelieves in Allah after his having believed, not he who is compelled while his heart is at rest on account of faith, but he who opens (his) breast to disbelief-- on these is the wrath of Allah, and they shall have a grievous chastisement.

And (as for) those who dispute about Allah after that obedience has been rendered to Him, their plea is null with their Lord, and upon them is wrath, and for them is severe punishment.