Quran 18:36 — The Cave (Al-Kahf)
"Moreover, I think this is it; I do not think that the Hour (the Hereafter) will ever come to pass. Even if I am returned to my Lord, I will (be clever enough to) possess an even better one over there."
[18:35] When he entered his garden, he wronged his soul by saying, "I do not think that this will ever end.
[18:37] His friend said to him, as he debated with him, "Have you disbelieved in the One who created you from dust, then from a tiny drop, then perfected you into a man?