3.11

In 11, Polydektes, king of the Seriphians, petrified by Perseus with the head of the Gorgon after sending him off for the sake of marriage with his mother, received himself, by the providence of Justice, the very death which he devised to happen to another:

Even you, Polydektes, dared to pollute the couch of Danae, repaying Zeus with infamous bedding; for which Perseus unleashed here the eyes of the Gorgon, stoneworking your limbs, pleasing his mother.