He composed several works on natural history, and produced also a complete Dictionary of this kind, after the model of the books 'Al-A'in' and 'Al-Jim,' the two letters of the alphabet with which Khalil, the grammarian, and Abu Amr as Shaibani respectively began their works. Ibn Duraid died at Baghdad A.D. 933.
The celebrated Motazelite divine Abu Haslim Abd-as Salam Al-Jubbai died the same day, and this caused the people to say that 'To-day philology and dogmatic theology have ceased to exist.'
