O Prophet, tell the captives you have taken: "If God finds some good in your hearts, He will reward you with something better than was taken away from you, and forgive your sins, for God is forgiving and kind." 70 But if they seek to betray you, they had betrayed Allah before, but He has let you overcome them. Allah is the Knower, the Wise. 71 Lo! those who believed and left their homes and strove with their wealth and their lives for the cause of Allah, and those who took them in and helped them: these are protecting friends one of another. And those who believed but did not leave their homes, ye have no duty to protect them till they leave their homes; but if they seek help from you in the matter of religion then it is your duty to help (them) except against a folk between whom and you there is a treaty. Allah is Seer of what ye do. 72 And those who disbelieve are allies to one another, (and) if you (Muslims of the whole world collectively) do not do so (i.e. become allies, as one united block with one Khalifah - chief Muslim ruler for the whole Muslim world to make victorious Allah's Religion of Islamic Monotheism), there will be Fitnah (wars, battles, polytheism, etc.) and oppression on earth, and a great mischief and corruption (appearance of polytheism). 73 Those who accepted the faith and abandoned their homes, and struggled in the cause of God, and those who gave them shelter and helped them, are veritably true believers. For them is forgiveness and noble sustenance. 74 And those who believed after [the initial emigration] and emigrated and fought with you - they are of you. But those of [blood] relationship are more entitled [to inheritance] in the decree of Allah. Indeed, Allah is Knowing of all things. 75