Valmiki Ramayana 6.71.16

क एष रक्षश्शार्दूलो रणभूमिं विराजयन्।अभ्येति रथिनां श्रेष्ठो रथेनादित्यतेजसा॥

ka eṣa rakṣaśśārdūlo raṇabhūmiṃ virājayan |abhyeti rathināṃ śreṣṭho rathenādityatejasā ||

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