[22] Then the Blessed One approached the wanderer Nigrodha. And the wanderer Nigrodha said this to the Blessed One: "Let the Blessed One come, venerable sir! Welcome, venerable sir, to the Blessed One! It has been long indeed, venerable sir, since the Blessed One found occasion to come here. May the Blessed One be seated, venerable sir; this seat has been prepared." The Blessed One sat down on the prepared seat, and the wanderer Nigrodha, taking a certain low seat, sat down to one side. To the wanderer Nigrodha seated to one side the Blessed One said this: "For what talk, Nigrodha, are you sitting together here now? And what conversation among you was left unfinished?"
When this was said, the wanderer Nigrodha said this to the Blessed One: "Here, venerable sir, we saw the Blessed One walking up and down in the open air at the peacocks' feeding ground on the bank of the Sumāgadhā, and having seen him we said this: 'If the ascetic Gotama should come to this assembly, we would ask him this question: What, venerable sir, is that dhamma of the Blessed One by which the Blessed One trains his disciples, and by which the disciples trained by the Blessed One, having attained solace, acknowledge the fundamental holy life (ādibrahmacariya) as their inmost aim?' This, venerable sir, was the conversation among us left unfinished when the Blessed One arrived."
"Hard indeed is it for you to understand this, Nigrodha—you who hold another view, another persuasion, another preference, being without the practice and without the teachers' tradition—that by which I train disciples, and by which the disciples trained by me, having attained solace, acknowledge the fundamental holy life as their inmost aim. Come then, Nigrodha, ask me a question about the higher disgust of evil according to your own teachers' doctrine: 'How, venerable sir, is the disgust of evil through austerity (tapojigucchā) fulfilled, and how is it unfulfilled?'"
When this was said, those wanderers broke into an uproar, raising a loud noise and a great clamor: "Wonderful indeed, sirs! Marvellous indeed, sirs, is the great power, the great might of the ascetic Gotama—in that he will set aside his own doctrine and invite discussion upon the doctrine of others!"
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.