فَطَوَّعَتۡ لَهٗ نَفۡسُهٗ قَـتۡلَ اَخِيۡهِ فَقَتَلَهٗ فَاَصۡبَحَ مِنَ الۡخٰسِرِيۡنَ
Then the (ill-commanding) self of Qabil (Cain) made the killing of his brother Habil (Abel) easy (and tempting) for him. So, he killed him and became one of the losers.