Al-Mukhtasar
فَمَا ٱسْطَـٰعُوٓا۟ أَن يَظْهَرُوهُ وَمَا ٱسْتَطَـٰعُوا۟ لَهُۥ نَقْبًا ﴿٩٧﴾
So Gog and Magog were unable to climb over it due to its height nor were they able to make a hole in it from beneath due to its hardness.
Al-Mukhtasar
فَمَا ٱسْطَـٰعُوٓا۟ أَن يَظْهَرُوهُ وَمَا ٱسْتَطَـٰعُوا۟ لَهُۥ نَقْبًا ﴿٩٧﴾