Surah Al-Kahf Verse 74 - English Translation by Aisha Bewley
Surah Al-Kahfفَٱنطَلَقَا حَتَّىٰٓ إِذَا لَقِيَا غُلَٰمٗا فَقَتَلَهُۥ قَالَ أَقَتَلۡتَ نَفۡسٗا زَكِيَّةَۢ بِغَيۡرِ نَفۡسٖ لَّقَدۡ جِئۡتَ شَيۡـٔٗا نُّكۡرٗا
So they went on until they met a youngster whom he killed. Musa said, ´Have you killed a boy who has done no wrong, without it being in retaliation for someone else? This is truly an appalling thing that you have done!´