[303] Sāvatthī. Sitting to one side, that bhikkhu said this to the Blessed One: "Venerable sir, it is said, 'a speaker of the Dhamma (dhammakathika), a speaker of the Dhamma.' In what way, venerable sir, is one a speaker of the Dhamma? In what way is one practising in accordance with the Dhamma (dhammānudhammapaṭipanna)? In what way has one attained Nibbāna in this very life (diṭṭhadhammanibbānappatta)?"
"If, bhikkhu, one teaches the Dhamma for the purpose of disenchantment (nibbidā) with form (rūpa), for its fading away (virāga), for its cessation, that is enough for him to be called 'a bhikkhu who is a speaker of the Dhamma.' If, bhikkhu, one is practising for disenchantment with form, for its fading away, for its cessation, that is enough for him to be called 'a bhikkhu practising in accordance with the Dhamma.' If, bhikkhu, through disenchantment with form, through its fading away, through its cessation, one is liberated by non-clinging, that is enough for him to be called 'a bhikkhu who has attained Nibbāna in this very life.'
"If, bhikkhu, ... with feeling (vedanā) … If, bhikkhu, ... with perception … If, bhikkhu, ... with volitional formations … If, bhikkhu, one teaches the Dhamma for the purpose of disenchantment with consciousness, for its fading away, for its cessation, that is enough for him to be called 'a bhikkhu who is a speaker of the Dhamma.' If, bhikkhu, one is practising for disenchantment with consciousness, for its fading away, for its cessation, that is enough for him to be called 'a bhikkhu practising in accordance with the Dhamma.' If, bhikkhu, through disenchantment with consciousness, through its fading away, through its cessation, one is liberated by non-clinging, that is enough for him to be called 'a bhikkhu who has attained Nibbāna in this very life.'"
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.