Quran 18:74 from Surah Al-Kahf on Divine Marvels.
فَٱنطَلَقَا حَتَّىٰٓ إِذَا لَقِيَا غُلَٰمٗا فَقَتَلَهُۥ قَالَ أَقَتَلۡتَ نَفۡسٗا زَكِيَّةَۢ بِغَيۡرِ نَفۡسٖ لَّقَدۡ جِئۡتَ شَيۡـٔٗا نُّكۡرٗا
English translation: Then they both set out until when they met a boy then he killed him He said Have you killed a soul pure for other than a soul Certainly you have done a thing evil
Transliteration: fa-intalaqa hatta idha laqiya ghulaman faqatalahu qala aqatalta nafsan zakiyyatan bighayri nafsin laqad ji'ta shayan nuk'ran