18:98
قَالَ هَـٰذَا رَحْمَةٌ مِّن رَّبِّى ۖ فَإِذَا جَآءَ وَعْدُ رَبِّى جَعَلَهُۥ دَكَّآءَ ۖ وَكَانَ وَعْدُ رَبِّى حَقًّا
qāla hādhā raḥmatun min rabbī fa-idhā jāa waʿdu rabbī jaʿalahu dakkāa wakāna waʿdu rabbī ḥaqqan
and he said, ‘This is a mercy from my Lord. But when my Lord’s promise is fulfilled, He will raze this barrier to the ground: my Lord’s promise always comes true.’
(Dhul-Qarnain) said: "This is a mercy from my Lord, but when the Promise of my Lord comes, He shall level it down to the ground. And the Promise of my Lord is ever true."