The research aims at studying the scientific biography of the jurist Abu AL-Ma'li AL-Mosuli (d. 621 A.H./ 1224 A.D.), in which he mastered in the generous koranic sciences especially the readings, honorable speech, and Arabic language, even he had compositions in these sciences as in: (AL-Durr AL-Marsuf fi wasif Mkharij AL-Huruf), (AL-Ma'yar lee a'ouzan AL-Asha'ar) in prosody and (Nubthat AL-Marid fi Ilm AL-Tajwid) in readings.
This paper treats of abu al-maalis date of birth in Mosul, and his study at the hand of the venerable sheikhs in it, in iddition to his journey to Baghdad, and his meeting with the, the great famous languist of Baghdadi one who is called Kamal AL-Dean Abu AL-Barakat AL-Anbari by whom he studied Arabic science.
Then, Abu AL-Ma'ali became a lecturer in AL-Nidhamia school, and for his fame, a lot of shekhs of Baghdad learnd at his hand.