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

[196] But when one told him that Ptolemy had a son just born, and that all the principal men of Syria, and the other countries subject to him, were to keep a festival, on account of the child's birthday, and went away in haste with great retinues to Alexandria, he was himself indeed hindered from going by old age; but he made trial of his sons, whether any of them would be willing to go to the king. And when the elder sons excused themselves from going, and said they were not courtiers good enough for such conversation, and advised him to send their brother Hyrcanus, he gladly hearkened to that advice, and called Hyrcanus, and asked him whether he would go to the king, and whether it was agreeable to him to go or not. And upon his promise that he would go, and his saying that he should not want much money for his journey, because he would live moderately, and that ten thousand drachmas would be sufficient, he was pleased with his son's prudence. After a little while, the son advised his father not to send his presents to the king from thence, but to give him a letter to his steward at Alexandria, that he might furnish him with money, for purchasing what should be most excellent and most precious. So he thinking that the expense of ten talents would be enough for presents to be made the king, and commending his son, as giving him good advice, wrote to Arion his steward, that managed all his money matters at Alexandria; which money was not less than three thousand talents on his account, for Joseph sent the money he received in Syria to Alexandria. And when the day appointed for the payment of the taxes to the king came, he wrote to Arion to pay them. So when the son had asked his father for a letter to the steward, and had received it, he made haste to Alexandria. And when he was gone, his brethren wrote to all the king's friends, that they should destroy him.