Surah Al-Anbya, Verse 96

حَتَّىٰٓ إِذَا فُتِحَتۡ يَأۡجُوجُ وَمَأۡجُوجُ وَهُم مِّن كُلِّ حَدَبٖ يَنسِلُونَ٩٦

ḥattā idhā futiḥat yajūju wamajūju wahum min kulli ḥadabin yansilūna

Until when [the dam of] Gog and Magog has been opened and they, from every elevation, descend