This study tackis (Abu baker ai-nagaash al-mosul :his masters ,his pupils and his writings) by searching in the life of one of mosul's scientists.And knowing the outstanding masters who has got his knowledge from, amd those who have taken knowledge from him .Then gathening his writning in the different sciences, eithsr in the readings or in the explanations and other sciences So ,this paper is divided into three topics: the first one deals with getting acquaintance with his name ,sirname , his family name. The second toqic deals with those who has taken his knowledge from ,his oldage ,and his outstanding pupils who have taken knowledge from him.
And the third topic which deals with his important writinge which he has writted and which the famous references have carried for us.