" الْكَبَائِرُ الإِشْرَاكُ بِاللَّهِ وَعُقُوقُ الْوَالِدَيْنِ وَقَتْلُ النَّفْسِ وَالْيَمِينُ الْغَمُوسُ "
It was narrated from 'Abdullah bin 'Amr that the Prophet said: "The major sins are: associating others with Allah, disobeying parents, killing a souls (murder) and swearing a false oath knowingly.