´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.
Hadith ReferenceSunan an-Nasa'i / The Book of Oaths (qasamah), Retaliation and Blood Money / Hadith: 4872
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح بخاري