Explanation of the country of dew and echo

The explanation of Qatar Al -Nada and Al -Sada is a book in grammar, its author: Ibn Hisham Al -Ansari, which is an explanation of the words formulated by the author Ibn Hisham himself in his summary author named: Qatar Al -Nada, and it includes most of the grammar sections close to his book: The Decus of Gold in knowing the words of the Arabs