It is a book from several parts for a judge of Ayyad and is considered the largest encyclopedia dealing with the translation of the men of the Maliki school, the "Al -Muwatta" narrators and its scholars. Judge Ayyad started this book by explaining the virtue of the knowledge of the people of Medina, and defended the theory of Maliki in taking the work of the people of the city, as they have the origins of the legislation,