A Brahmin Paribbājaka asks the Buddha how far the Dhamma is sanditthiko, akāliko, ehipassiko, opanayiko, und paccattam veditabbo viññūhi. The Buddha explains. A.i.157f.
The Buddha visits the Paribbājakārāma on the banks of the Sappinikā und converses mit a number of distinguished Paribbājakas - Annabhāra, Varadhara, Sakuludāyī und others. The Buddha tells them that there are four factors of Dhamma which no discerning recluse or brahmin can despise - not-coveting, not malice, right mindfulness, und right concentration. A.ii.31f.