Quran 77:31 from Surah Al-Mursalaat on Divine Marvels.
لَّا ظَلِيلٖ وَلَا يُغۡنِي مِنَ ٱللَّهَبِ
English translation: No cool shade and not availing against the flame
Transliteration: la zalilin wala yugh'ni mina al-lahabi