Ibn Abi Ishaq

ʿAbd-Allāh ibn Abī Isḥāq al-Ḥaḍramī, was an Arab from Yemen and is considered the first grammarian of the Arabic language. He compiled a prescriptive grammar by referring to the usage of the Bedouins, whose language was seen as especially pure. He is also considered the first person to use linguistic analogy in Arabic.