It is narrated from Sayyiduna Abdullah bin Amr, may Allah be pleased with him, that a man came to the service of the Prophet, peace and blessings be upon him, intending to go for jihad. The Prophet, peace and blessings be upon him, asked: "Are your parents alive?" He replied: Yes. The Prophet, peace and blessings be upon him, said: "Then go and strive in their service (serve them, that is your jihad)."