وَإِنَّهُۥ لَقَسَمٌ لَّوْ تَعْلَمُونَ عَظِيمٌ
And indeed, it is surely an oath—if you (only) knew—tremendous.
Roots in this verse: ق س م (qsm), ع ل م (Elm), ع ظ م (EZm)