The book of Musnad Othman bin Affan by Abu al -Qasim al -Baghawi (which is printed within the Book of Benefits) .. its author Abu al -Qasim Abdullah bin Muhammad bin Abdul Aziz bin al -Marzaban bin Sabor bin Shahnashh al -Baghawi. The book of Musnad Othman bin Affan by Abu al -Qasim al -Baghawi (which is printed within the Book of Benefits) .. His author, Abu al -Qasim Abdullah bin Muhammad bin Abdul Aziz bin al -Marzaban bin Sabor bin Shahanshah al -Baghawi