《长部》第二十九经，起因于耆那教领袖尼干陀若提子去世后其门徒陷入纷争的消息传来，佛陀藉此说明这种分裂本是那种教法的性格使然，进而详述真正圆满的导师与教法应具备哪些特质，并以如来自身为其典范。

The twenty-ninth discourse of the Dīghanikāya, prompted by news of the death of the Jain leader Nigaṇṭha Nāṭaputta and the ensuing disputes among his followers, in which the Buddha explains why such discord was inevitable given that flawed teaching, then details the qualities of a truly perfect teacher and teaching, exemplified by the Tathāgata himself.