Abu Bakr Muhammad ibn Dawud al-Zahiri, Abū Bakr Muḥammad ibn Dāwūd al-Iṣbahānī, also known as Avendeath, was a medieval theologian and scholar of the Arabic language and Islamic law. He was one of the early propagators of his father Dawud al-Zahiri's method in jurisprudence, Zahirism.