Valmiki Ramayana 7.6.63
राक्षसानां समुद्योगं तं तु नारायणः प्रभुः ।देवदूतादुपश्रुत्य चक्रे युद्धे तदा मनः॥
rākṣasānāṃ samudyogaṃ taṃ tu nārāyaṇaḥ prabhuḥ |devadūtādupaśrutya cakre yuddhe tadā manaḥ ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book