Verily, those who believed, and emigrated and strove hard and fought with their property and their lives in the Cause of Allah as well as those who gave (them) asylum and help, - these are (all) allies to one another. And as to those who believed but did not emigrate (to you O Muhammad SAW), you owe no duty of protection to them until they emigrate, but if they seek your help in religion, it is your duty to help them except against a people with whom you have a treaty of mutual alliance, and Allah is the All-Seer of what you do.