Samannaphalasutta 100.3

100.3

Vuddhihesā, mahārāja, ariyassa vinaye, yo accayaṃ accayato disvā yathādhammaṃ paṭikaroti, āyatiṃ saṃvaraṃ āpajjatī”ti.

For it is growth in the training of the Noble One to recognize a mistake for what it is, deal with it properly, and commit to restraint in the future.”