١٨ : ٩٧
فَمَا ٱسۡطَٰعُوٓاْ أَن يَظۡهَرُوهُ وَمَا ٱسۡتَطَٰعُواْ لَهُۥ نَقۡبٗا
Thus they could not climb over it nor could they pierce it.
شرح ومعانٍ · ١
- They could not climb the dam for its smooth surface as well as it was as high as the mountains, and could not pierce it for its fortitude.