Surah 18. Al-Kahf, Ayah 87

I.e., in the hereafter - implying that nothing that pertains to the life to come could ever be imagined or defined in terms of human experience.

Cf. 11:117 and the corresponding note [149].

Though most powerful among kings, he remembered that his power was but human, and given by Allah. His punishments were but tentative, to preserve the balance of this life as he could appraise it. Even if his punishment was capital ("wrong doer sent back to his Lord") it was nothing compared to the dire consequences of sin, in the final Justice of Allah.