Valmiki Ramayana 3.39.4
अग्निहोत्रेषु तीर्थेषु चैत्य वृक्षेषु रावण ।अत्यन्त घोरो व्यचरन् तापसान् संप्रधर्षयन्॥
agnihotreṣu tīrtheṣu caitya vṛkṣeṣu rāvaṇa |atyanta ghoro vyacaran tāpasān saṃpradharṣayan ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book