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

[74] But God freed Joseph from his confinement, after he had endured his bonds two years, and had received no assistance from the cupbearer, who did not remember what he had said to him formerly; and God contrived this method of deliverance for him. Pharaoh the king had seen in his sleep the same evening two visions; and after them had the interpretations of them both given him. He had forgotten the latter, but retained the dreams themselves. Being therefore troubled at what he had seen, for it seemed to him to be all of a melancholy nature, the next day he called together the wisest men among the Egyptians, desiring to learn from them the interpretation of his dreams. But when they hesitated about them, the king was so much the more disturbed. And now it was that the memory of Joseph, and his skill in dreams, came into the mind of the king's cupbearer, when he saw the confusion that Pharaoh was in; so he came and mentioned Joseph to him, as also the vision he had seen in prison, and how the event proved as he had said; as also that the chief baker was crucified on the very same day; and that this also happened to him according to the interpretation of Joseph. That Joseph himself was laid in bonds by Potiphar, who was his head cook, as a slave; but, he said, he was one of the noblest of the stock of the Hebrews; and said further, his father lived in great splendor. "If, therefore, thou wilt send for him, and not despise him on the score of his misfortunes, thou wilt learn what thy dreams signify." So the king commanded that they should bring Joseph into his presence; and those who received the command came and brought him with them, having taken care of his habit, that it might be decent, as the king had enjoined them to do.