《后汉书·列传·西域传》
所以朝廷设置戊己官员，分别负责西域事务；委派都护这样的一方主帅，总揽西域最高职权。
故设戊己之官，分任其事；建都护之帅，总领其权。
Therefore, the imperial court established the Wei and Ji officials who were both responsible for the affairs of the Western Regions; and dispatched a general like Duhu who was the supreme commander of the Western Regions who had the highest authority of the Western Regions.