كَالْحَيَوَانِ النَّاطِقِ لِلْإِنْسَانِ
As “rational animal” is used in the classical definition of the human.
Within classical logical terminology, ḥayawān is the wider genus and nāṭiq points to the differentiating rational capacity, not merely audible speech.
The purpose is to distinguish a definition aimed at essential kind from everyday descriptions such as a person's occupation or clothing color.