30فَطَوَّعَت لَهُ نَفسُهُ قَتلَ أَخيهِ فَقَتَلَهُ فَأَصبَحَ مِنَ الخاسِرينَ(Saheeh International)And his soul permitted to him1 the murder of his brother, so he killed him and became among the losers. i.e., the killer allowed himself.