History of the Peloponnesian War

Meanwhile the rebels in Ithome, unable to prolong further a ten years' resistance, surrendered to Lacedaemon; the conditions being that they should depart from Peloponnese under safe conduct, and should never set foot in it again:

any one who might hereafter be found there was to be the slave of his captor. It must be known that the Lacedaemonians had an old oracle from Delphi, to the effect that they should let go the suppliant of Zeus at Ithome.