The book of the virtue of the Arabs and the warning of its sciences written by Abu Muhammad Abdullah bin Muslim bin Qutaybah al -Dinuri, and the book is divided into two parts, and there are many important axes in them, on top of which is the talk about the virtue of the Arabs over others, and the preferred of Quraysh over others, and the talk about the sciences of the Arabs and their genius. From what this book also dealt with the Almighty saying, "You were the best nation that brought people out." And his saying, "God does not take you with the language in your faith." And dealt with piety and the words of God "If I honor you with God, I fear you", and his saying "or excitement from the knowledge of" and the Almighty's saying "and make me a tongue Believe in others, "and all these verses and others explain the location of the Arabs from them and how they indicate their merit, and explain it in an explanation.