Valmiki Ramayana 6.55.7

रथमास्थाय विपुलं तप्तकाञ्चनकुण्डलः ।मेघाभो मेघवर्णश्च मेघस्वनमहास्वनः ।राक्षसैः संवृतो भीमैस्तदा निर्यात्यकम्पनः॥

rathamāsthāya vipulaṃ taptakāñcanakuṇḍalaḥ |meghābho meghavarṇaśca meghasvanamahāsvanaḥ |rākṣasaiḥ saṃvṛto bhīmaistadā niryātyakampanaḥ ||

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