9:29Fight those who do not believe in God, nor in the Last Day, nor forbid what God and His Messenger have forbidden, nor abide by the religion of truth—from among those who received the Scripture—until they pay the due tax, willingly or unwillingly.

9:37Postponement is an increase in disbelief—by which those who disbelieve are led astray. They allow it one year, and forbid it another year, in order to conform to the number made sacred by God, thus permitting what God has forbidden. The evil of their deeds seems good to them. God does not guide the disbelieving people.