Abu Hayyan al-Andalusi

Athir ad-Din Abu Hayyan Muhammad ibn Yusuf ibn Ali al-Andalusi (654-745 AH / 1256-1344 CE) was one of the greatest Arabic grammarians and Quran commentators of the medieval period. Born in Granada, al-Andalus, he studied there before emigrating to North Africa and eventually settling in Egypt, where he spent most of his scholarly career teaching at various institutions in Cairo.

Abu Hayyan was the foremost authority on Arabic grammar of his era, and his major grammatical work, al-Bahr al-Muhit (The Encompassing Ocean), is simultaneously his magnum opus in Arabic grammar and his most important Quranic commentary. This massive multi-volume work analyzes the Quran through the lens of Arabic linguistics, exploring the grammatical, syntactical, and philological dimensions of every verse with extraordinary depth. It is an indispensable reference for scholars of both Quranic studies and classical Arabic grammar.

He also authored Minhaj as-Salik fi Ilm al-Kalam (An Accessible Path in the Science of Syntax), a major work on Arabic grammar; ath-Thayl wal-Mutamm lil-Kitab al-Muqaddim (a grammatical study); and al-Irtishaf, another important grammatical reference. His biographical work Ghayat al-Ihsan fi Fada'il al-Sudan preserves information about African scholars.

Abu Hayyan was known for his sharp criticism of other grammarians, including his pointed critiques of Ibn Malik (author of the al-Alfiyyah) and of az-Zamakhshari's grammatical claims in his tafsir al-Kashshaf. He passed away in Cairo in 745 AH, leaving a scholarly legacy of the highest order in Arabic linguistics and Quranic commentary.