Valmiki Ramayana 5.39.30
शरैस्तु सङ्कुलां कृत्वा लङ्कां परबलार्दनः ।मां येद्यदि काकुत्स्थस्तत्तस्य सदृशं भवेत्॥
śaraistu saṅkulāṃ kṛtvā laṅkāṃ parabalārdanaḥ |māṃ yedyadi kākutsthastattasya sadṛśaṃ bhavet ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book