An-Naba • BN-TAFSEER-IBN-E-KASEER
﴿ وَجَعَلْنَا سِرَاجًۭا وَهَّاجًۭا ﴾
“and have placed [therein the sun,] a lamp full of blazing splendour.”
Please check ayah 78:16 for complete tafsir.