विभीषणोपदेशे रावणस्य परुषवाक्यम् (Ravana’s Harsh Reply to Vibhishana’s Counsel)
अन्यस्त्वेवंविधंब्रूयाद्वाक्यमेतन्निशाचर: ।अस्मिन्मुहूर्तेनभवेत्त्वांतुधिक्कुलपांसन ।।।।
vaset saha sapatnena kruddhe ’nāśīviṣeṇa vā | na tu mitra-pravādena saṃvasec chatru-sevinā ||
One may live even with a known rival, or with an angry venomous serpent; but one should not live alongside a person who claims friendship while serving one’s enemy.
"O Night ranger (Vibheeshana)! If any other one had spoken such words, I would not let him live this moment and also destroy. Fie upon you."
True friendship is measured by loyalty and right intention; professed friendship that secretly serves an enemy is adharma and more dangerous than open hostility.
In Laṅkā’s royal assembly, Vibhīṣaṇa warns Rāvaṇa about the danger of false allies and the need to discern genuine friendship.
Discernment and truthful counsel—Vibhīṣaṇa speaks unpleasant but beneficial truth for the king’s welfare.