The opinions of Al-Radhi Al-Nahwiyah in the explanation of Al-Kafiya

There are things that distinguished Al-Radi from other grammarians, and this is evident from his explanation of Al-Kafi. His explanation was characterized by breadth, and Al-Radi mentioned rulings that the author of Al-Kafi did not mention himself, and he extended it with extensive digressions. I sought in this research to highlight what distinguished Al-Radi as a grammatical genius, and to showcase his opinions that were unique and exclusive, and to compare them with the words of grammarians to clarify the status, value, and influence of Al-Radi's opinions in grammatical studies.