The book of money is written by Abu Ubayd al -Qasim bin Salim bin Abdullah al -Hurawi al -Baghdadi, and it is one of the most famous references that the students of science use in this section, and it is divided into books. Among the most prominent books that included: the book of Al -Falah, its faces, its sake, the book of Sunan al -Fahl, the five, the charity, the book of the conquest of the two lands, peace and Sunnah and its rulings, the book of the exits of the shadow and its places in which it is spent, and the book of the rulings of the two lands in its feudalism, the book of the five, its provisions, its Sunnah, the book of charity and its Sunnah And its rulings