AN 6.63

katamo ca, bhikkhave, kāmānaṃ vipāko? yaṃ kho, bhikkhave, kāmayamāno tajjaṃ tajjaṃ attabhāvaṃ abhinibbatteti puññabhāgiyaṃ vā apuññabhāgiyaṃ vā, ayaṃ vuccati, bhikkhave, kāmānaṃ vipāko.

SN 22.96

atha kho bhagavā parittaṃ gomayapiṇḍaṃ pāṇinā gahetvā taṃ bhikkhuṃ etadavoca. ettako'pi kho, bhikkhu, attabhāvapaṭilābho n'atthi nicco dhuvo sassato avipariṇāmadhammo sassatisamaṃ tath'eva ṭhassati.