The Ithaf al-Mahra book is a valuable book that helps to make it easier to locate a hadith in one of these books. In addition, this book represents an index arranged by the names of the companions of the narrators who are mentioned in these ten books with their narrations in them, and if the narrator is one of the most prolific, his hadiths are arranged according to the names of his narrators from the followers and then those who follow them.