Nooh • BN-TAFSEER-IBN-E-KASEER
﴿ وَجَعَلَ ٱلْقَمَرَ فِيهِنَّ نُورًۭا وَجَعَلَ ٱلشَّمْسَ سِرَاجًۭا ﴾
“and has set up within them the moon as a light [reflected] and set up the sun as a [radiant] lamp?”
Please check ayah 71:20 for complete tafsir.