The unique decade occupied a prominent position in Arab studies in terms of literature, language and history, and wrote books in it and published articles and research ... However, most of them - if not all of them - did not assume the position of the book between the East and Andalusia, and Andalusia and the personality of the author and his role in his book were noticed. It deserves from scientific attention based on extensive careful study, so I thought that I should focus on these matters by highlighting the value of the book and realizing its identity, so that this research complements many of the articles and opinions that dealt with the authors approach, the sources of his book and his topics from the point of view based on linking the book with the East and adopting it absolutely The eastern traditions of authorship have both form and content, and for this also the subject, method, and sources. The mama is quickly briefed to be an introduction to the core of the research and the jewel ... with the help of the opinions of the former, an affirming or a critical opponent. And highlighting its value ... The title of the book - The Unique Decade - was an area for long reflection and a careful pause during which I examined the sayings of the ancients and their opinions on this name, and this was complementary to the basic elements in the To research the identity of the book and the share of Andalusia and the Andalusian author in it ...