Bhagavatapurana 4.4.17

4.4.17

karṇau pidhāya nirayād yad akalpa īśe dharmāvitary asṛṇibhir nṛbhir asyamāne /
chindyāt prasahya ruśatīm asatīṃ prabhuś cej jihvām asūn api tato visṛjet sa dharmaḥ //

17. A person should shut his ears and depart from the place, if he cannot (die or slay the miscreant), when the

Lord, the protector of righteousness, is blasphemed by men of unrestrained nature; if he is able, he ought by force to cut off the vile tongue that utters such evil things and then he might even lose his life; and that (indeed) is the righteous course.