Quran 34:8 — Sheba (Saba')

"Either he fabricated lies about GOD, or he is crazy." Indeed, those who disbelieve in the Hereafter have incurred the worst retribution; they have gone far astray.

[34:7] Those who disbelieve have said, "Let us show you a man who tells you that after you are torn apart you will be created anew.

[34:9] Have they not seen all the things in front of them and behind them, in the heaven and the earth? If we willed, we could have caused the earth to swallow them, or caused masses to fall on them from the sky. This should be a sufficient proof for every obedient servant.