Flavius Josephus, Antiquities of the Jews
William Whiston, A.M., Ed.

[348] But as soon as he was gone away, some men came and bound Hyrcanus and Phasaelus, while Phasaelus greatly reproached the Parthians for their perjury; However, that butler who was sent against Herod had it in command to get him without the walls of the city, and seize upon him; but messengers had been sent by Phasaelus to inform Herod of the perfidiousness of the Parthians. And when he knew that the enemy had seized upon them, he went to Pacorus, and to the most potent of the Parthians, as to the lord of the rest, who, although they knew the whole matter, dissembled with him in a deceitful way; and said that he ought to go out with them before the walls, and meet those which were bringing him his letters, for that they were not taken by his adversaries, but were coming to give him an account of the good success Phasaelus had had. Herod did not give credit to what they said; for he had heard that his brother was seized upon by others also; and the daughter of Hyrcanus, whose daughter he had espoused, was his monitor also [not to credit them], which made him still more suspicious of the Parthians; for although other people did not give heed to her, yet did he believe her as a woman of very great wisdom.