A Yemeni man migrated and came to the service of the Messenger of Allah, peace and blessings be upon him, and said: "I have migrated." The Prophet, peace and blessings be upon him, said: "You have migrated from polytheism, but do you have parents in Yemen?" He replied: "Yes." The Prophet asked: "Did they give you permission?" He said: "No." The Prophet said: "Go back, seek their permission; if they permit, then participate in jihad, otherwise serve them."