Satī continued: If one hears an irresponsible person blaspheme the master and controller of religion, one should block his ears and go away if unable to punish him. But if one is able to kill, then one should by force cut out the blasphemer’s tongue and kill the offender, and after that one should give up his own life.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
कर्णौ पिधाय निरयाद्यदकल्प ईशे धर्मावितर्यसृणिभिर्नृभिरस्यमाने । छिन्द्यात्प्रसह्य रुशतीमसतीं प्रभुश्चे- ज्जिह्वामसूनपि ततो विसृजेत्स धर्मः
karṇau pidhāya nirayādyadakalpa īśe dharmāvitaryasṛṇibhirnṛbhirasyamāne | chindyātprasahya ruśatīmasatīṃ prabhuśce- jjihvāmasūnapi tato visṛjetsa dharmaḥ
SB 4.4.17