Abu Jaʿfar an-Nahhas

Abū Jaʿfar Aḥmad b. Muḥammad b. Ismā‘īl b. Yūnus al-Murādi, surnamed al-Nahhās "coppersmith", was born in Fustat circa 260 AH. He studied in Baghdad under the foremost grammarians of the period, like Abu Ishaq al-Zajjaj who familiarised him with Al-Kitāb by Sībawayh. He also studied philology under Al-Akhfash al-Aṣghar and Nifṭawayh.^{[1]: 13–14} He is the author of an influential work on abrogation, Al-Nāsīkh wal-Mansūkh. He wrote a full grammatical analysis of the Qur'an and a grammatical primer known as "The Apple" (التفاحة at-Tuffāha). He also wrote works on poetry, including a commentary on the Mu'allaqat.^{[1]: 24–25}

He was killed as he was reciting poetry sitting on the banks of the Nile in Cairo. The story goes that a passing peasant thought he was uttering a magical curse to prevent the rise of the Nile to raise the price of food, and so kicked him into the river causing him to drown.^{[1]: 25–26}