The book (Rhymes) for Al-Akhfash the middle, Said Bin
Masada (215 AH) originally for anyone who sought after him to put a
book in the science of rhymes, So frequent references in the books for these
whom came after him.
The difficulty found in this book by many of the ancient Arab
scientists, some of them worked on interpreted it, The most
prominent of them is Othman Bin Jaini (392 AH), which was
explained it and revealed mysteries, And Simplified the issues of
the science of rhymes and origins,
So he wrote a book he called (Al-Ma,arab), as some of them (or Al-
Ma,arab in the rhymes) or (Al-Ma,arab in explaining the rhymes)
at others.
This research deals with the history of writing this book, describes
its manuscript and then the methodological work conducted by the
researcher in achieving the book, as well as the sources obtained
by the researcher.