Atthakanagarasutta 3.4

3.4

“Katamo pana, bhante ānanda, tena bhagavatā jānatā passatā arahatā sammāsambuddhena ekadhammo akkhāto, yattha bhikkhuno appamattassa ātāpino pahitattassa viharato avimuttañceva cittaṃ vimuccati, aparikkhīṇā ca āsavā parikkhayaṃ gacchanti, ananuppattañca anuttaraṃ yogakkhemaṃ anupāpuṇātī”ti?

“And what is that one thing?”