Quran 15:40 from Surah Al-Hijr on Divine Marvels.
إِلَّا عِبَادَكَ مِنۡهُمُ ٱلۡمُخۡلَصِينَ
English translation: Except Your slaves among them the ones who are sincere
Transliteration: illa ibadaka min'humu al-mukh'lasina