Tatiyasamudayadhammasutta

Ekaṁ samayaṁ āyasmā ca sāriputto āyasmā ca mahākoṭṭhiko bārāṇasiyaṁ viharanti isipatane migadāye …pe… ekamantaṁ nisinno kho āyasmā mahākoṭṭhiko āyasmantaṁ sāriputtaṁ etadavoca: “‘vijjā, vijjā’ti, āvuso sāriputta, vuccati. Katamā nu kho, āvuso, vijjā; kittāvatā ca vijjāgato hotī”ti?

At one time Venerable Sāriputta and Venerable Mahākoṭṭhita were staying near Varanasi in the deer park at Isipatana. … Mahākoṭṭhita said to Sāriputta: “Reverend Sāriputta, they speak of this thing called ‘knowledge’. What is knowledge? And how is a knowing one defined?”

“Idhāvuso, sutavā ariyasāvako samudayadhammaṁ rūpaṁ ‘samudayadhammaṁ rūpan’ti yathābhūtaṁ pajānāti; vayadhammaṁ rūpaṁ …pe… samudayavayadhammaṁ rūpaṁ ‘samudayavayadhammaṁ rūpan’ti yathābhūtaṁ pajānāti; samudayadhammaṁ vedanaṁ …pe… samudayavayadhammā vedanā … samudayadhammaṁ saññaṁ …pe… samudayadhamme saṅkhāre … vayadhamme saṅkhāre … samudayavayadhamme saṅkhāre ‘samudayavayadhammā saṅkhārā’ti yathābhūtaṁ pajānāti. Samudayadhammaṁ viññāṇaṁ … vayadhammaṁ viññāṇaṁ … samudayavayadhammaṁ viññāṇaṁ ‘samudayavayadhammaṁ viññāṇan’ti yathābhūtaṁ pajānāti. Ayaṁ vuccatāvuso, vijjā; ettāvatā ca vijjāgato hotī”ti. Tatiyaṁ.

“Reverend, it’s when a learned noble disciple truly understands form, which is liable to originate … liable to vanish … liable to originate and vanish, as form which is liable to originate and vanish. They truly understand feeling … perception … choices … consciousness, which is liable to originate … liable to vanish … liable to originate and vanish, as consciousness which is liable to originate and vanish. This is called knowledge. And this is how a knowing one is defined.”