أَشَدّ

ءَأَنتُمْ أَشَدُّ خَلْقًا أَمِ ٱلسَّمَآءُ ۚ بَنَىٰهَا

Are you a more difficult creation or is the heaven? He [i.e., Allāh] constructed it.

فَأَهْلَكْنَآ أَشَدَّ مِنْهُم بَطْشًۭا وَمَضَىٰ مَثَلُ ٱلْأَوَّلِينَ

And We destroyed greater than them in [striking] power, and the example of the former peoples has preceded.

إِنَّ نَاشِئَةَ ٱلَّيْلِ هِىَ أَشَدُّ وَطْـًۭٔا وَأَقْوَمُ قِيلًا

Indeed, the hours of the night are more effective for concurrence [of heart and tongue] and more suitable for words.