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