The Ending of DefilementsĀsavakkhayasutta

“… And it’s because of developing and cultivating these four kinds of mindfulness meditation that I realized the undefiled freedom of heart and freedom by wisdom. And I live having realized it with my own insight in this very life due to the ending of defilements.”“Imesañca panāhaṁ, āvuso, catunnaṁ satipaṭṭhānānaṁ bhāvitattā bahulīkatattā āsavānaṁ khayā anāsavaṁ cetovimuttiṁ paññāvimuttiṁ diṭṭheva dhamme sayaṁ abhiññā sacchikatvā upasampajja viharāmī”ti.

The Linked Discourses with Anuruddha, the eighth section.Anuruddhasaṁyuttaṁ aṭṭhamaṁ.