Plutarch: Lives of the noble Grecians and Romans

Eumenes was thus taken off; and Divine Providence assigned to no other man the chastisement of the commanders and soldiers that had betrayed him; but Antigonus himself, abominating the Argyraspids as wicked and inhuman villains, delivered them up to Sibyrtius, the governor of Arachosia, commanding him by all ways and means to destroy and exterminate them, so that not a man of them might ever come to Macedon, or so much as within sight of the Greek sea.