四分律比丘含注戒本 1.231

1.231

and slanders a bhikṣu who is not a pārājika with a groundless pārājika matter, wishing to ruin his pure conduct; and at a later time, whether questioned or not questioned, knowing that it was taking a fragment from an extraneous matter, this bhikṣu himself says, "I spoke these words out of anger"—it is a saṃghāvaśeṣa.