Plutarch,
Plutarch's Lives — Alcibiades
(1859)
“ During this action, the Athenian captains who besieged Chalcedon concluded a treaty with Pharnabazus upon these articles: that he should give them a sum of money; that the Chalcedonians should return to the subjection of Athens; and that the Athenians should make no inroad into the province whereof Pharnabazus was governor; and Pharnabazus was also to provide safe conducts for the Athenian ambassadors to the king of Persia. Afterwards, when Alcibiades returned thither, Pharnabazus required that he also should be sworn to the treaty ”
