Sahih Muslim Book 32, Hadith Number 6186.
Chapter : Politeness towards parents and their right to it.
Yazid b. Abu Habib reported that Na’im, the freed slave of Umm Salama, reported to him that ‘Abdullah b. ‘Amr b. ‘As said: There came to Allah’s Apostle (may peace be upon him) a person and said: I owe allegiance to you for migration and Jihad seeking reward only from Allah. He (the Holy Prophet) said: Is one from amongst your parents living? He said: Yes, of course, both are living. He further asked: Do you want to seek reward from Allah? He said: Yes. Thereupon Allah’s Messenger (may peace be upon him) said: Go back to your parents and accord them benevolent treatment.