It includes information that is rare in the book of others, even though the ancients say it is extensive, and more than it was reported by his name: (Al -Dibaj). As for naming the book with brocade, it is the manufacture of people, not the name of the author. Al -Marzabani quoted a fox that he said: (Whoever wants the news of the pre -Islamic times, he must write Abu Ubaidah, and whoever wants the news of Islam, he must write al -Madaini. (Al -Dibaj), and he said: (Abu Ubaidah did not enumerate Absa in the book Al -Dibaj ...) and Al -Masoudi was quoted in his book (Warning and Supervision) and Al -Bashti (d. Al -Azhari is at the forefront (language refinement). And a number of linguists and literature. And see in this program the book (Al -Khail) by Abu Ubaidah. He wrote from the same topic 89 Books of Entertainment and Complete Assurance in Language and literature