The book Sibawayh and its explanations

Sibawayh is Amr bin Othman bin Qanbar from the land of Persia, a scholar from the scholars of grammar, interested in learning jurisprudence and hadith for a period, then he turned to learn the Arabic language, so he mastered it and excelled in it. Al-Hammad bin Salama dictated to him, and he learned the sciences of grammar from Isa bin Omar, Younes bin Habib, Abu al-Khattab al-Akhfash al-Kabir, and Al-Khalil. He excelled in the sciences of language until he became a scholar and a proof, and he has a book in grammar considered a miracle with no equivalent.