33:18God already knows the hinderers among you, and those who say to their brethren, “Come and join us.” Rarely do they mobilize for battle.

33:51You may defer any of them you wish, and receive any of them you wish. Should you desire any of those you had deferred, there is no blame on you. This is more proper, so that they will be comforted, and not be grieved, and be content with what you have given each one of them. God knows what is within your hearts. God is Omniscient and Clement.