Cþ¹avagga Pæ¹i which is Book IV of the Vinaya Pi¥aka continues to deal with more rules and procedures for institutional acts or functions known as Saµghakamma. The twelve sections in this book deal with rules for offences such as Saµghædisesa that come before the Saµgha; rules for observance of penances such as parivæsa and mænatta and rules for reinstatement of a bhikkhu. There are also miscellaneous rules concerning bathing, dress, dwellings and furniture and those dealing with treatment of visiting bhikkhus, and duties of tutors and novices. Some of the important enactments are concerned with Tajjanøya Kamma, formal act of censure by the Saµgha taken against those bhikkhus who cause strife, quarrels, disputes, who associate familiarly with lay people and who speak in dispraise of the Buddha, the Dhamma and the Saµgha; Ukkhepanøya Kamma, formal act of suspension to be taken against those who having committed an offence do not want to admit it; and Pakæsanøya Kamma taken against Devadatta announcing publicly that "Whatever Devadatta does by deed or word, should be seen as Devadatta’s own and has nothing to do with the Buddha, the Dhamma and the Saµgha." The account of this action is followed by the story of Devadatta’s three attempts on the life of the Buddha and the schism caused by Devadatta among the Saµgha.

There is, in section ten, the story of how Mahæpajæpati, the Buddha’s foster mother, requested admission into the Order, how the Buddha refused permission at first, and how he finally acceded to the request because of Ænanda’s entreaties on her behalf.