Avijjāpahānasutta
Sāvatthinidānaṁ. Atha kho aññataro bhikkhu yena bhagavā tenupasaṅkami; upasaṅkamitvā bhagavantaṁ abhivādetvā ekamantaṁ nisīdi. Ekamantaṁ nisinno kho so bhikkhu bhagavantaṁ etadavoca: “kathaṁ nu kho, bhante, jānato kathaṁ passato avijjā pahīyati, vijjā uppajjatī”ti?
Giving Up Ignorance
At Sāvatthī. Then a mendicant went up to the Buddha, bowed, sat down to one side, and said to him: “Sir, how does one know and see so as to give up ignorance and give rise to knowledge?”