This research is concerned with investigating and studying a letter composed in the rhyme science of Shams al-Din Muhammad ibn Musa ibn Muhammad al-Husayni al-Hijazi al-Maliki known as (Muhammad al-Hijazi) who died after (1018) years of immigration. A unique copy copied by the author was made available to us and photographed in the Library of Mosul endowments, which is in the origin of the collection of the school (Alhjiat) within a total number of taxonomic number 40/22, and by investigating this letter we added a third work of Mohammed Hijazi did not know who translated it. Our work in the investigation was based on editing the text of the letter carefully and carefully according to the rules of contemporary spelling, and attention to the grammatical and morphological form in the places that require it, as well as the graduation of texts of various types appropriately and document the contents of the letter of views and statements from sources.