Sura 18 Al-Kahf (The Cave), vers 97

1. فَمَا اسْطَاعُوا أَنْ يَظْهَرُوهُ وَمَا اسْتَطَاعُوا لَهُ نَقْبًا

   So Gog and Magog were unable to pass over it, nor were they able (to effect) in it any penetration.

   18:97

Översättning: Saheeh International