These are all from Sahih Bukhari.
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Volume 1, Book 10, Number 505:
Narrated 'Abdullah:
I asked the Prophet "Which deed is the dearest to Allah?" He replied, "To offer the prayers at their early stated fixed times." I asked, "What is the next (in goodness)?" He replied,** "To be good and dutiful to your parents" **I again asked, "What is the next (in goodness)?" He replied, 'To participate in Jihad (religious fighting) in Allah's cause." 'Abdullah added, "I asked only that much and if I had asked more, the Prophet would have told me more."
Volume 3, Book 48, Number 821:
Narrated Anas:
The Prophet was asked about the great sins He said, "They are:--
(1 ) To join others in worship with Allah,
(2)** To be undutiful to one's parents.**
(3) To kill a person (which Allah has forbidden to kill) (i.e. to commit the crime of murdering).
(4) And to give a false witness."
Volume 4, Book 52, Number 41:
Narrated Abdullah bin Masud:
I asked Allah's Apostle, "O Allah's Apostle! What is the best deed?" He replied, "To offer the prayers at their early stated fixed times." I asked, "What is next in goodness?" He replied, "To be good and dutiful to your parents." I further asked, what is next in goodness?" He replied, "To participate in Jihad in Allah's Cause." I did not ask Allah's Apostle anymore and if I had asked him more, he would have told me more.
Volume 6, Book 60, Number 102:
Narrated Ibn Abbas:
(In the Pre-Islamic Period ) the children used to inherit all the property but the parents used to inherit only through a will. So Allah cancelled that which He liked to cancel and put decreed that the share of a son was to be twice the share of a daughter, and for the parents one-sixth for each one of them, or one third, and for the wife one-eighth or one-fourth, and for the husband one-half, or one-fourth.
Volume 8, Book 73, Number 1:
Narrated Al-Walid bin 'Aizar:
I heard Abi Amr 'Ash-Shaibani saying, "The owner of this house." he pointed to 'Abdullah's house, "said, 'I asked the Prophet 'Which deed is loved most by Allah?" He replied, 'To offer prayers at their early (very first) stated times.' " 'Abdullah asked, "What is the next (in goodness)?" The Prophet said,** "To be good and dutiful to one's parents," **'Abdullah asked, "What is the next (in goodness)?" The Prophet said, To participate in Jihad for Allah's Cause." 'Abdullah added, "The Prophet narrated to me these three things, and if I had asked more, he would have told me more."
Volume 8, Book 73, Number 3:
Narrated 'Abdullah bin 'Amr:
A man said to the Prophet, "Shall I participate in Jihad?" The Prophet said, "Are your parents living?" The man said, "Yes." the Prophet said, "Do Jihad for their benefit."
Volume 8, Book 73, Number 4:
Narrated 'Abdullah bin 'Amr:
Allah's Apostle said. "It is one of the greatest sins that a man should curse his parents." It was asked (by the people), "O Allah's Apostle! How does a man curse his parents?" The Prophet said, "'The man abuses the father of another man and the latter abuses the father of the former and abuses his mother."
Volume 8, Book 74, Number 290:
Narrated Abu Bakr:
Allah's Apostle said, "Shall I inform you of the biggest of the great sins?" They said, "Yes, O Allah's Apostle!" He said,** "To join partners in worship with Allah, and to be undutiful to one's parents. "**
[This message has been edited by analyze it (edited April 25, 2001).]