Surah Al-Anbya, Ayah 39
Quran 21:39 · The Prophets · Makki · Para 17 · Page 325
لَوْ یَعْلَمُ الَّذِیْنَ كَفَرُوْا حِیْنَ لَا یَكُفُّوْنَ عَنْ وُّجُوْهِهِمُ النَّارَ وَلَا عَنْ ظُهُوْرِهِمْ وَلَا هُمْ یُنْصَرُوْنَ ۟
Transliteration
Law yaAAlamu allatheena kafaroo heenala yakuffoona AAan wujoohihimu annara walaAAan thuhoorihim wala hum yunsaroon
Saheeh International
If those who disbelieved but knew the time when they will not avert the Fire from their faces or from their backs and they will not be aided...
Al-Mukhtasar fi Tafsir
If these disbelieving rejecters of the resurrection were to know of the time when they will not be able to turn the hellfire away from their faces and backs, they would not be so hasty in seeking it. If only they were to know that there shall be no one to help relieve them of the punishment, and if only they were convinced of its reality, they would not be so hasty either.
Tafsir Ibn Kathir (abridged)
Explains 21:38–21:40 together — read it on 21:38