No Compulsion in Religion
[2:256] There shall be no compulsion in religion: the right way is now distinct from the wrong way. Anyone who denounces the devil and believes in GOD has grasped the strongest bond; one that never breaks. GOD is Hearer, Omniscient.

Absolute Freedom of Religion
[18:29] Proclaim: "This is the truth from your Lord," then whoever wills let him believe, and whoever wills let him disbelieve. We have prepared for the transgressors a fire that will completely surround them. When they scream for help, they will be given a liquid like concentrated acid that scalds the faces. What a miserable drink! What a miserable destiny!