Verily, those who believe and have fled into exile (left their homes), and fought strenuously with their wealth and lives in the cause of Allah, and those who have given them refuge and help, these shall be kin (or friends and protectors) to each other. But those who believe, but have not fled into exile (left their homes); you have no duty to their claims of kindred, until they flee as well. But if they seek your aid in religion, then it is your duty to help them, except against a people between whom and you there is an alliance; for Allah is Seer of what you do.