Surah Al-Anbiya' (The Prophets), Verse 96

حَتّٰۤی اِذَا فُتِحَتْ یَاْجُوْجُ وَمَاْجُوْجُ وَهُمْ مِّنْ كُلِّ حَدَبٍ یَّنْسِلُوْنَ ۟

Hattaaa izaa futihat Ya'jooju wa Ma'jooju wa hum min kulli hadabiny yansiloon

“Until the Gog and Magog (people) are let through (their barrier), and they swiftly swarm from every hill.”

Quran 21:96 (Yusuf Ali Translation)