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This is because all good deeds are charity for souls.Any good that is tangible and meaningful, so the believer should dispose of it according to the law of his Lord, not according to his own desires, for he is a servant commanded under the command of his master. If he transgresses the law of his Lord in that, there is no choice left for him to do except his own desires, so he falls. From that high level to what is below it according to the common believers, but according to the knowers, he is disobedient .