Mujahid
- By the الثُّرَيَّا (the Pleiades) as they fall at the time of Fajr. The Arabs would call the الثُّرَيَّا “نَجْم” (a star) even though in number they were نُجُوم (stars).
- النَّجْم refers to the Qur’an when it is revealed because it was revealed in parts (نُجُومًا).
Language insight supporting this: نَجَّم means to give or pay something in instalments; نُجُوم is used to refer to instalments.