وَلَيالٍ عَشرٍ

And [by] ten nights

وَالشَّفعِ وَالوَترِ

And [by] the even [number] and the odd

وَاللَّيلِ إِذا يَسرِ

And [by] the night when it passes,

هَل في ذٰلِكَ قَسَمٌ لِذي حِجرٍ

Is there [not] in [all] that an oath [sufficient] for one of perception?

أَلَم تَرَ كَيفَ فَعَلَ رَبُّكَ بِعادٍ

Have you not considered how your Lord dealt with 'Aad -