9:90Some of the Desert-Arabs came to make excuses, asking to be granted exemption, while those who were untrue to God and His Messenger stayed behind. A painful punishment will afflict those among them who disbelieved.

9:91There is no blame on the weak, nor on the sick, nor on those who have nothing to give, provided they are true to God and His Messenger. In no way can the righteous be blamed. God is Forgiving and Merciful.

9:111God has purchased from the believers their lives and their properties in exchange for Paradise. They fight in God’s way, and they kill and get killed. It is a promise binding on Him in the Torah, and the Gospel, and the Quran. And who is more true to his promise than God? So rejoice in making such an exchange—that is the supreme triumph.