"And know that out of all the booty that ye may acquire (in war) a fifth share is assigned to God, and the Apostle, and to near relatives, or phans, the needy, and the wayfarer. " (Qur'an, 8:41)
2. To prevent capital interest or usury.
"Those who devour usury will not stand except as stands one whom the Evil One by his touch has driven to madness. That is because they say: "Trade is like usury, "but God hath permitted trade and forbidden usury. Those who after rece-