Title: al-ʻĀmil al-lughawī bayna Sībawayh wa-al-Farrāʼ
Subjects: Arabic language, Grammar
People: Sibawayh, ʻAmr ibn ʻUthmān (-approximately 793), Yaḥyá ibn Ziyād Farrāʼ (761 or 762-822 or 823)