Shloka 6.85.12
निकुम्भिला-यज्ञविघ्नः — Vibhishana’s Counsel and Lakshmana’s March to Nikumbhila
तेनवीरेणतपसावरदानात्स्वयम्भुवः ।अस्त्रंब्रह्मशिरःप्राप्तंकामगाश्चतुरङ्गमाः ।।6.85.12।।
sa eṣa saha sainyena prāptaḥ kila nikumbhilām | yady utatiṣṭhet kṛtaṃ karma hatān sarvāṃś ca viddhi naḥ ||6.85.13||
He has indeed reached Nikumbhilā together with his forces. If he should rise up after completing that rite, know that all of us are as good as slain.
"Lakshmana, being heroic received Brahmasira weapon from the creator by austerity and also horses which can course according to his will."
Dharma demands vigilance: when adharma gains power through ritualized means, the righteous must prevent the harm before it manifests.
Vibhīṣaṇa warns that Indrajit’s completion of a rite at Nikumbhilā will make the enemy nearly invincible and doom the allies.
Foresight and frank truth-telling: Vibhīṣaṇa speaks plainly despite the fear his news may cause.