قالَ هـٰذا رَحمَةٌ مِن رَبّي ۖ فَإِذا جاءَ وَعدُ رَبّي جَعَلَهُ دَكّاءَ ۖ وَكانَ وَعدُ رَبّي حَقًّا

[Dhul-Qarnayn] said, "This is a mercy from my Lord; but when the promise of my Lord comes, He will make it level, and ever is the promise of my Lord true."