Then a certain bhikkhu approached the Blessed One … and said to him: “Venerable sir, it is said, ‘a speaker on the Dhamma, a speaker on the Dhamma.’ In what way, venerable sir, is one a speaker on the Dhamma?”
“Bhikkhu, if one teaches the Dhamma for the purpose of revulsion towards the eye, for its fading away and cessation, one can be called a bhikkhu who is a speaker on the Dhamma. If one is practising for the purpose of revulsion towards the eye, for its fading away and cessation, one can be called a bhikkhu who is practising in accordance with the Dhamma. If, through revulsion towards the eye, through its fading away and cessation, one is liberated by nonclinging, one can be called a bhikkhu who has attained Nibbāna in this very life.
“Bhikkhu, if one teaches the Dhamma for the purpose of revulsion towards the ear … for the purpose of revulsion towards the mind, for its fading away and cessation, one can be called a bhikkhu who is a speaker on the Dhamma. If one is practising for the purpose of revulsion towards the mind, for its fading away and cessation, one can be called a bhikkhu who is practising in accordance with the Dhamma. If, through revulsion towards the mind, through its fading away and cessation, one is liberated by nonclinging, one can be called a bhikkhu who has attained Nibbāna in this very life.”