Are your parents living? He said: Yes. Thereupon he (the Holy Prophet) said: You should put in your best efforts (in their) service.
Sahih Muslim Book 45, Hadith 5
← Previous Hadith " Who amongst the people deserves the best treatment from me".

Sahih Muslim Book 45, Hadith 4 Next Hadith → This hadith has been narrated on the authority of Habib with the several chains of transmitters.

Sahih Muslim Book 45, Hadith 6