Shloka 6.43.8
द्वन्द्वयुद्धप्रवृत्तिः (Dvandva-Yuddha: The Onset of Single Combats)
संगतस्तुमहाक्रोधोराक्षसोरावणानुजः ।समरेतीक्ष्णवेगेनमित्रघ्नेनविभीषणः ।।6.43.8।।
saṅgatas tu mahākrodho rākṣaso rāvaṇānujaḥ |
samare tīkṣṇavegena mitraghnena vibhīṣaṇaḥ ||6.43.8||
Then Vibhīṣaṇa—Rāvaṇa’s brother, a rākṣasa blazing with fury—closed in upon Mitraghna in battle and fought him with swift force.
Highly furious Rakshasa, Vibheeshana, brother of Ravana fought with Rakshasa, Mitraghna.
Dharma here is expressed as steadfast commitment to a righteous cause: Vibhīṣaṇa, having chosen the path aligned with truth and justice, acts decisively on the battlefield against adharma’s forces.
During the Lanka war, individual champions pair off; Vibhīṣaṇa directly engages the rākṣasa warrior Mitraghna in close combat.
Courage and resolve: Vibhīṣaṇa does not hesitate in the crisis of war, meeting a named opponent with speed and determination.