Valmiki Ramayana 6.69.92
प्रासं समाविध्य तदा ऽङ्गदाय समुज्ज्वलन्तं सहसोत्ससर्ज।स वालिपुत्रोरसि वज्रकल्पे बभूव भग्नो न्यपतच्च भूमौ॥
prāsaṃ samāvidhya tadā 'ṅgadāya samujjvalantaṃ sahasotsasarja |sa vāliputrorasi vajrakalpe babhūva bhagno nyapatacca bhūmau ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book