Ezra 6:6

Now therefore Tatnai, governor beyond the river ,.... The river Euphrates, that side of it towards the land of Israel; Josephus F26 Ibid. (Antiqu.) l. 11. c. 4. sect. 7. calls this man master of the horse:

Shetharboznai, and your companions the Apharsachites, which are beyond the river, be ye far from thence ; keep at a distance from the Jews, and give them no disturbance, nor interrupt them in their work of building of the temple, but mind your own business and government.