Surah Al-Kahf (The Cave), Verse 18

وَتَحْسَبُهُمْ اَیْقَاظًا وَّهُمْ رُقُوْدٌ وَّنُقَلِّبُهُمْ ذَاتَ الْیَمِیْنِ وَذَاتَ الشِّمَالِ وَكَلْبُهُمْ بَاسِطٌ ذِرَاعَیْهِ بِالْوَصِیْدِ لَوِ اطَّلَعْتَ عَلَیْهِمْ لَوَلَّیْتَ مِنْهُمْ فِرَارًا وَّلَمُلِئْتَ مِنْهُمْ رُعْبًا ۟

Wa tahsabuhum ayqaazanw wa hum ruqood; wa nuqallibuhum zaatal yameeni wa zaatash shimaali wa kalbuhum baasitun ziraa'ayhi bilwaseed; lawit tala'ta 'alaihim la wallaita minhum firaaranw wa lamuli'ta minhum ru'ba

“Thou wouldst have deemed them awake, whilst they were asleep, and We turned them on their right and on their left sides: their dog stretching forth his two fore-legs on the threshold: if thou hadst come up on to them, thou wouldst have certainly turned back from them in flight, and wouldst certainly have been filled with terror of them.”

Quran 18:18 (Yusuf Ali Translation)