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Muni Jambuvijaya
Anuyogadvāra, the classification of the Āgamas into Arga and angabāhya, and the further classification of the angabāhyas into kālika and utkālika was established. On the basis of the reference found in Umāsvāti's works and the Dhavalā it can be deduced that there was a time when the Sāmāyika, etc. were not regarded as forming one group; but when they did come to be grouped under one title (i.e. āvasyaka) the angabāhya works were classified into two-āvašyaka and avašyakavyatirikta. The fact that this classification was prevalent is corroborated by the Sthānānga (sūtra 71), the Nandi (sūtra 43) and the Anuyogadvāra (sūtra 5). The speciality of the Anuyogadvāra is that the classification of the Sruta given therein runs as follows:
.
Śruta
Anga
angabāhya
kālika
utkālika
āvašyaka
āvasyakavyatirikta
But the Nandisūtra offers the following classification:
Śruta
Anga
angabāhya
āvasyaka
āvasyakavyatirikta
kālika
utkālika
