Valmiki Ramayana 6.73.7
अद्येन्द्रवैवस्वतविष्णुमित्रसाध्याश्विवैश्वानरचन्द्रसूर्याः।द्रक्ष्यन्तु मे विक्रममप्रमेयं विष्णोरिवोग्रं बलियज्ञवाटे॥
adyendravaivasvataviṣṇumitrasādhyāśvivaiśvānaracandrasūryāḥ |drakṣyantu me vikramamaprameyaṃ viṣṇorivograṃ baliyajñavāṭe ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book