The fifth labour was less heroic: Euristheus ordered him to clean the stables of king Augia in one day, which were covered with a high layer of manure. Heracles offered to clean the stables for Augia in exchange for a tenth of his animals. To do this as quickly as possible, Heracles turned the course of a river and caused it to pass through the stable, thus sweeping out all of the manure. Euristheus did not count this as a valid labour because Heracles looked to profit himself.