Abstract
. Praise be to God, Lord of the worlds, and the best of prayers. Completion was made on our Prophet Muhammad-- The envoy is a mercy to the worlds, and to his family of deceived and deceived people, and whoever follows them until the Day of Judgment:Because life must have controls that control one’s relationship with his Lord and his relationship with society, and Islam has established these controls in people\'s lives and defines them precisely and clearly and links them all to God Almighty, so the matter is not in them for capricious passions or desires, and these controls are called by God Almighty contracts, and these contracts Shares and bonds, so the jurist must be aware of them in order to be able to judge them. Hence the importance of my studies shows, and my method of writing this research was the inductive that combines evidence with its discussion and the statement of the most correct opinion, and I committed myself to not taking evidence of the safe doctrine wrote the doctrine in order to preserve the scientific honesty