Valmiki Ramayana 7.65.18

राजापि यजते यज्ञमस्याश्रमसमीपतः ।अश्वमेधं महायज्ञं तं वसिष्ठो ऽभ्यपालयत्॥

rājāpi yajate yajñamasyāśramasamīpataḥ |aśvamedhaṃ mahāyajñaṃ taṃ vasiṣṭho 'bhyapālayat ||

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