Valmiki Ramayana 5.1.27
दर्शयन्तो महाविद्यां विद्याधरमहर्षयः ।सहितास्तस्थुराकाशे वीक्षाञ्चक्रुश्च पर्वतम्॥
darśayanto mahāvidyāṃ vidyādharamaharṣayaḥ |sahitāstasthurākāśe vīkṣāñcakruśca parvatam ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book