Surah 18 · Juz 16
Al-Kahf · 18:97
فَمَا اسْطَاعُوا أَنْ يَظْهَرُوهُ وَمَا اسْتَطَاعُوا لَهُ نَقْبًا
(97) So they [i.e., Gog and Magog] were unable to pass over it, nor were they able [to effect] in it any penetration.
Tafsir
97. 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.
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