Histories
Herodotus
Herodotus. Godley, Alfred Denis, translator. Cambridge, MA; London: Harvard University Press; William Heinemann, Ltd., 1920-1925 (printing).
and presently, when Mandane was of marriageable age, he feared the vision too much to give her to any Mede worthy to marry into his family, but married her to a Persian called Cambyses, a man whom he knew to be wellborn and of a quiet temper: for Astyages held Cambyses to be much lower than a Mede of middle rank.
But during the first year that Mandane was married to Cambyses, Astyages saw a second vision. He dreamed that a vine grew out of the genitals of this daughter, and that the vine covered the whole of Asia (continent)Asia.
Having seen this vision, and communicated it to the interpreters of dreams, he sent to the Persians for his daughter, who was about to give birth, and when she arrived kept her guarded, meaning to kill whatever child she bore: for the interpreters declared that the meaning of his dream was that his daughter's offspring would rule in his place.