"الكَبَائِرُ : الإشْرَاكُ بالله ، وَعُقُوقُ الوَالِدَيْنِ ، وَقَتْلُ النَّفْس ، وَاليَمِينُ الغَمُوسُ"
Abdullah bin 'Amr bin Al-'as (May Allah be pleased with them) reported: The Prophet (ﷺ) said, "(Of the) major sins are: to ascribe partners to Allah, disobey parents, murder someone, and to take a false oath (intentionally)". [Al- Bukhari] .