Narrated 'Abdullah bin 'Amr:
that the Prophet (ﷺ) said: "The major sins are associating others with Allah, disobeying the parents" or he said, "the false oath". Shu'bah (a narrator in the chain) was in doubt. (IT)
English reference (IT): Vol. 5, Book 44, Hadith 3021 (IT)
Arabic reference (IT): Book 47, Hadith 3294 (IT)