COLLECTOR OF TAXES. Arab `Ashir, a collector of the tenths; and `Amil mutasaddiq a collector of alms.
The Khalifah is to allow the officer employed in the collection of the zakat as much out of it as is in proportion of his labour, and will remunerate himself and his assistants. (Hidiyah, vol. i. p. 54.)
Based on Hughes, Dictionary of Islam