Whereas the endowment represents the third sector, and it is one of the forms of social responsibility that advances towards institutional practice, and the need for legal and legal studies that deal with endowment conditions, starting with the endowment of businessmen and educational institutions and ending with the procedures governing this, it has become urgent. The field to assist the two positions and endowment administrators regarding: Sukuk, bylaws, and endowment projects, and to provide endowment models that are consistent with the best contemporary formulas for investing and developing endowments.