Important city in the time of the Buddha located some 30 leagues west of Vārāṇasī (Benares) by river. There were four residences (ārāma) for use by the monks.and the Buddha stayed in them on several occasions. Kosambī was the site of the only schism to occur during the Buddha's life when a monk was excommunicated as a result of an alleged monastic offence. The monk disputed his guilt and a bitter quarrel broke out between his supporters and opponents. The Buddha intervened but the parties refused to heed him and even came to blows. A second intervention by the Buddha failed to secure results and disgusted he withdrew to the forest for a solitary retreat. Under pressure from the laity the monks repented, resolved their dispute, and sought the Buddha's pardon.