Affiliation

An editor of the Concordance of Hadith vocabulary

Biography

He studied Semitic languages at Leiden, where he later held the chair of Modern Persian until 1995. As a young scholar he was one of the editors of the Concordance et indices de la tradition musulmane: he joined the work after de Haas and van Loon, and the fourth volume appeared in 1962 under the three of them, with the help of Muhammad Fuʾad ʿAbd al-Baqi.