Quran 68:28 from Surah Al-Qalam on Divine Marvels.
قَالَ أَوۡسَطُهُمۡ أَلَمۡ أَقُل لَّكُمۡ لَوۡلَا تُسَبِّحُونَ
English translation: Said (the) most moderate of them Did not I tell you Why not you glorify (Allah)
Transliteration: qala awsatuhum alam aqul lakum lawla tusabbihuna