Surah Al-Kahf Verse 74 - English Translation by Muhammad Mahmoud Ghali
Surah Al-Kahfفَٱنطَلَقَا حَتَّىٰٓ إِذَا لَقِيَا غُلَٰمٗا فَقَتَلَهُۥ قَالَ أَقَتَلۡتَ نَفۡسٗا زَكِيَّةَۢ بِغَيۡرِ نَفۡسٖ لَّقَدۡ جِئۡتَ شَيۡـٔٗا نُّكۡرٗا
So they (both) went off until, when they (both) met a youth, then he killed him. He said, "Have you killed a most cleansed self without (his having killed another) self? Indeed you have already come with a (highly) maleficent thing