四分律比丘含注戒本 2.61

2.61

Excepting gross offenses, speaking of other offenses; or speaking of one's own gross offenses or other people's offenses—all are duṣkṛtas. As for non-offense: if one does not know, if previously appointed by the Saṃgha, if one perceives it as not gross, or if the white-robed layperson had already heard it beforehand, it is not an offense.