“Associating anyone with Allah, disobedience to parents, killing a person and false utterance.”

Sahih Muslim

“Allah has forbidden you

(1) to be undutiful to your mothers
(2) to withhold (what you should give) or
(3) demand (what you do not deserve), and
(4) to bury your daughters alive.

And Allah has disliked that

(A) you talk too much about others
(B) ask too many questions (in religion), or
(C) waste your property.’”

Sahih al Bukhari Hadith, Volume # 8, Hadith # 6

“What do you say about fornication, drinking wine and theft?”

“Allah and His Messenger know best,”

we replied.

He stated,

“They are acts of outrage and there is punishment for them, but shall I tell you which is the greatest of the great wrong actions? Associating with Allah Almighty and disobeying parents.”

He had been reclining, but then he sat up and said,

“and lying.”

Taken from Al-Adab al-Mufrad – by, Imam Al-Bukhari

“The best of the deeds or deed is the (observance of) prayer at its proper time and kindness to the parents.”

Muslim, Book 001, Number 0155