Ezra 4:5

and hired counselors against them to frustrate their purpose all the days of Cyrus king of Persia, even until the reign of Darius king of Persia.

Surrounding context

4:4 Then the people of the land tried to discourage the people of Judah. They troubled them in building,

4:5 and hired counselors against them to frustrate their purpose all the days of Cyrus king of Persia, even until the reign of Darius king of Persia.

4:6 In the reign of Ahasuerus, in the beginning of his reign, they wrote an accusation against the inhabitants of Judah and Jerusalem.

Translation and sources