Quran 22:55 — Pilgrimage (Al-Hajj)

As for those who disbelieve, they will continue to harbor doubts until the Hour comes to them suddenly, or until the retribution of a terrible day comes to them.

[22:54] Those who are blessed with knowledge will recognize the truth from your Lord, then believe in it, and their hearts will readily accept it. Most assuredly, GOD guides the believers in the right path.

[22:56] All sovereignty on that day belongs to GOD, and He will judge among them. As for those who believe and lead a righteous life, they have deserved the gardens of bliss.