Valmiki Ramayana 6.61.24

ध्रुवं लोकविनाशाय पौलस्त्येनासि निर्मितः ।तस्मात्त्वमद्यप्रभृति मृतकल्पः शयिष्यसे॥

dhruvaṃ lokavināśāya paulastyenāsi nirmitaḥ |tasmāttvamadyaprabhṛti mṛtakalpaḥ śayiṣyase ||

Our plain-language meaning of this verse is waiting for scholar review.