शार्दूलचरवृत्तान्तः (Saardula’s Spy-Report on Rama’s Camp and the Vanara Host)
नतेचारयितुंशक्याराजन्वानरपुङ्गवाः ।विक्रान्ताबलवन्तश्चराघवेणचरक्षिताः ।।6.30.5।।
rākṣasānāṁ variṣṭhaś ca tava bhrātā vibhīṣaṇaḥ |
pratigṛhya purīṁ laṅkāṁ rāghavasya hite rataḥ ||6.30.34||
And Vibhīṣaṇa—your brother, the best among the rākṣasas—having accepted the city of Laṅkā, remains devoted to Rāghava’s welfare.
"O King! the Vanara heroes are valiant and highly powerful. They are also protected by Rama. It is not possible to spy on them."
Dharma over blood-ties: Vibhishana’s alignment with Rama’s welfare shows that righteousness can supersede familial loyalty when family stands for adharma.
Śārdūla reports that Vibhishana has joined Rama and is positioned as the recipient/acceptor of Lanka, acting for Rama’s benefit.
Moral courage and integrity: Vibhishana’s steadfast commitment to what he perceives as right.