Valmiki Ramayana 2.1.7

स हि देवै रुदीर्णस्य रावणस्य वधार्थिभिः ।अर्थितो मानुषे लोके जज्ञे विष्णुः सनातनः॥

sa hi devai rudīrṇasya rāvaṇasya vadhārthibhiḥ |arthito mānuṣe loke jajñe viṣṇuḥ sanātanaḥ ||

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