Surah Al-Kahf Verse 74 - English Translation by Muhammad Asad
Surah Al-Kahfفَٱنطَلَقَا حَتَّىٰٓ إِذَا لَقِيَا غُلَٰمٗا فَقَتَلَهُۥ قَالَ أَقَتَلۡتَ نَفۡسٗا زَكِيَّةَۢ بِغَيۡرِ نَفۡسٖ لَّقَدۡ جِئۡتَ شَيۡـٔٗا نُّكۡرٗا
And so the two went on, till, when they met a young man, [the sage] slew him -(whereupon Moses] exclaimed: "Hast thou slain an innocent human being without [his having taken] another man's life? Indeed, thou hast done a terrible thing