History of the Peloponnesian War

Thucydides

Thucydides, Vol. 1-4. Smith, Charles Foster, translator. London and Cambridge, MA: Heinemann and Harvard University Press, 1919-1923.

But Perdiccas immediately took Brasidas and his army, together with his own forces, and made an expedition against his neighbour Arrhabaeus, son of Bromerus, king of the Lyncestian Macedonians; for he had a quarrel with him and wished to subdue him.

But when he and Brasidas arrived with their combined armies at the pass leading to Lyncus, Brasidas said that he wished, before appealing to arms, to have a conference with Arrhabaeus and make him an ally of the Lacedaemonians, if he could.