Recoiling from transgression- On committing transgression of the rules (of conduct and discipline), while delivering sermons or performing obligatory works, to utter 'micchā mi dukkadam' (let my wrongdoing be futile), either on account of inspiration by others or one's own memory.
Padikkamaṇaṃ puṇa pavayaṇamādisu āvassagakatnme vā sahasā atikkamane paḍicotito sayaṃ vā saritūna micchā dukkadatn kareti evant tassa suddhī.
(ĀvaCū 2. p. 246)