The six common-herdbhikṣus, to whose improper or evil conduct is attributed the laying down of many of the laws by Śākyamuni; also 六眾; different lists of names are given, the generally accepted list indicating Nanda, Upananda, Aśvaka, Punarvasu, Chanda, and Udāyin. Udāyin is probably Kalodayin, a name given in other lists.