Thucydides, History of the Peloponnesian War
Benjamin Jowett, Ed.

62. The two Athenian generals who remained in Sicily now divided the fleet between them by lot,¹ and sailed towards Selinus and Egesta; Egestaeans would give them the promised money, and also to ascertain the condition of the Selinuntians and the nature of their quarrel with the Egestaeans. [2] Sailing along the north coast of Sicily, which looks towards the Tyrrhenian Gulf, they touched at Himera, the only Hellenic city in this part of the island. But they were not received, and passed on. On their voyage they took Hyccara, a city on the sea-shore which, although of Sicanian origin, was hostile to the Egestaeans². [3] They reduced the inhabitants to slavery, and handed the place over to the Egestaeans, whose cavalry had now joined them. The Athenian troops then marched back through the country of the Sicels until they arrived at Catana; the ships which conveyed the prisoners going round the coast to meet them. [4] Nicias had sailed straight from Hyccara to Egesta, where he did his business, and having obtained thirty talents³ of silver, rejoined the army at Catana. The Athenians on their return disposed of their slaves⁴; the sum realized by the sale was about a hundred and twenty talents⁵. [5] They next sailed round to their Sicel allies and bade them send reinforcements. Then with half of their army they marched against Hybla Geleatis, a hostile town, which they failed to take. And so ended the summer.