四分律比丘含注戒本 3.46

3.46

食者，是比丘應向餘比丘悔過言：「大德！我犯可訶法，所不應為，我今向大德悔過！」是名悔過法。

[The rule continues:] "and eats it, this bhikṣu must confess to the other bhikṣus, saying: 'Venerables! I have committed a blameworthy offense, which should not have been done; I now confess it to the Venerables!' This is called the rule of confession."