Many writings in Arabic and Hebrew language are left from Musa Ibn Meimūn. These writings are on different subjects such as law, theology, philosophy, medicine, and mathematics both in Jewish and Islamic culture. However, some of his writings arouse the scholars’ curiosity more than the other ones because they are written in Arabic language but in Hebrew letters. In the present article, the author examines part of Ibn Meimūn’s writing called “Seferha- Masvūt” or “The Book of Rules”. Regarding this, he firstly changes the text from Hebrew letters to Arabic letters. He does not change the words which are in Hebrew Language in original text, but in a footnote shows the transliteration and explains the meaning of the word. Besides, he draws up a table in three parts: the first part includes the Hebrew characters, the second part includes the Arabic equivalent, and the third part includes the transliteration of the Hebrew characters. Finally, he provides a picture of Ibn Meimūn’s original text which is in Hebrew Letters.