It is not for the people of the City and for the Bedouins who dwell around them to stay behind God 's Messenger , and to prefer their lives to his ; that is because they are smitten neither by thirst , nor fatigue , nor emptiness in the way of God , neither tread they any tread enraging the unbelievers , nor gain any gain from any enemy , but a righteous deed is thereby written to their account ; God leaves not to waste the wage of the good-doers .