Nissaraniyasutta 4.2

4.2

‘upekkhā hi kho me cetovimutti bhāvitā bahulīkatā yānīkatā vatthukatā anuṭṭhitā paricitā susamāraddhā;

‘I’ve developed the heart’s release by equanimity. I’ve cultivated it, made it my vehicle and my basis, kept it up, consolidated it, and properly implemented it.