ٱلذَّارِيَات : ١٧

  • كَانُواْ They used (to)
  • قَلِيلٗا little
  • مِّنَ of
  • ٱلَّيۡلِ the night
  • مَا [what]
  • يَهۡجَعُونَ sleep
They used to sleep but little of the night,1
Footnotes
1 - i.e., spending a portion of the night in prayer and supplication.
Little of the night did they use to sleep (maa is extra; yahja'oona is the predicate of kaanoo; qaleelan, 'little', is an adverb), in other words, they used to sleep for a small portion of the night and perform prayers during most of it,