Kāpavya-carita (कापव्यचरित) — Reforming Dasyus through Regulated Rāja-Dharma
न वाच्य: परिवादो<यं न श्रोतव्य:ः कथड्चन । कर्णावथ पिधातव्यौ प्रस्थेयं चान्यतो भवेत्
na vācyaḥ parivādo ’yaṃ na śrotavyaḥ kathaṃcana | karṇāv atha pidhātavyau prasthēyaṃ cānyato bhavet ||
ビーシュマは言った。「この種の誹りは、口にしてはならず、いかなる形でも聞いてはならぬ。もし誰かが他人を悪しざまに語るなら、自ら耳を塞げ——さもなくば、その場を立って他所へ去れ。」
भीष्म उवाच
One should practice restraint in speech and hearing: do not engage in slander, do not entertain it by listening, and if it arises, actively avoid it by closing the ears or leaving.
In the Śānti Parva’s instruction on dharma and proper conduct, Bhīṣma advises the listener on ethical behavior, specifically how to respond when others indulge in backbiting.