"I asked the Messenger of Allah: 'O Messenger of Allah! Which is the most virtuous of deeds?' He said: 'Salat during its appropriate time.' I said: 'Then what, O Messenger of Allah?' He said: 'Being dutiful to one's parents.' I said: 'Then what, O Messenger of Allah?' He said: 'Jihad in the cause of Allah.' Then the messenger of Allah was silent, and if I had asked him more, he would have told me more.'"
Jami` at-Tirmidhi Book 27, Hadith 2
← Previous Hadith "I said: 'O Messenger of Allah! Who most deserves(my) reverence?' He said: 'Your mother.'" He said: "I said: 'Then who?' He said: 'Your mother.'" He said: "I said: 'Then who?' He said: 'Your mother.'" He said: "I said: 'Then who?' He said: 'Then your father, then the nearest relatives, then the nearest relatives.'"

Jami` at-Tirmidhi Book 27, Hadith 1 Next Hadith → the Prophet said: "The Lord's pleasure is in the parent's pleasure, and the Lord's anger is in the parent's anger."(Hasan).

Jami` at-Tirmidhi Book 27, Hadith 3