The book is looking at the science of the noble hadith, which is strange, the hadith, as in the noble hadiths mysterious words and phrases that most people do not understand, so the scholars explained these phrases and explained their connotations. Among them was, but the most important of them is the work of this book, as it came as a result of the efforts of the scholars who preceded it. Al -Zamakhshari, the booklet, made values, which is the arrangement of strange words, as an arrangement, according to the letters of the dictionary