And know that, whatever booty you take, a fifth is for God, and for His Messenger and for kinsfolk, orphans, the indigent, and the son of the road, if you have faith in God…. Booty is the property of unbelievers that Muslims capture in the time of battle and struggle. It is said that struggle is of two sorts: the outer struggle and the inner struggle. The outer struggle is against the unbelievers with the sword, and the inner struggle is against the soul with severity. Those who struggle with the sword are three men: the wage-earning striver, the forgiven wounded, and the martyred slain. In the same way, the strugglers against the soul are three men: One strives, and he is among the pious; one attacks, and he is among the Pegs; one is released, and he is among the Substitutes. He who struggles against the unbelievers becomes rich by possessing the booty. He who struggles against the soul becomes rich in the heart. When someone is rich in property, the prop- erty is either permitted and a tribulation, or forbidden and a curse. When someone is rich in the heart, his aspiration is greater than this world and his desire greater than the afterworld. MuṣṬafā called struggle against the soul more magnificent and greater. He said: " We have returned from the lesser struggle to the greater struggle. " This is because you can avoid the enemy, but you cannot avoid the soul. When you get along with an enemy, you will be secure from his evil. If you get along with the soul, you will see your own destruction. One of the misfortunes of the soul is what MuṣṬafā said: " God gazes not on your forms or your deeds, but He gazes on your hearts. " He said that He gazes on the heart, but He does not gaze on the soul. It is well known that gazing is the result of love, and not gazing the result of hatred. If the Real did not consider the soul an enemy, He would gaze on it just as He gazes on the heart. This makes it mandatory to consider the soul an enemy. One must conform with the Real and not gaze on the soul with affection and love. In the battlefield of struggle, one must act against it severely with the sword of discipline.
