فَانطَلَقَا حَتَّى إِذَا لَقِيَا غُلَامًا فَقَتَلَهُ قَالَ أَقَتَلْتَ نَفْسًا زَكِيَّةً بِغَيْرِ نَفْسٍ لَّقَدْ جِئْتَ شَيْئًا نُّكْرًا

So they went on until they came upon a boy, whereat he slew him. He said, ‘Did you slay an innocent soul, without [his having slain] anyone? You have certainly done a dire thing!’