A Brahmin Paribbájaka asks the Buddha how far the Dhamma is sanditthiko, akáliko, ehipassiko, opanayiko, and paccattam veditabbo vińńúhi. The Buddha explains. A.i.157f.
The Buddha visits the Paribbájakáráma on the banks of the Sappiniká and converses with a number of distinguished Paribbájakas - Annabhára, Varadhara, Sakuludáyí and 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, and right concentration. A.ii.31f.