Valmiki Ramayana 6.78.22

इत्यार्षे श्रीमद्रामायणे वाल्मीकीये आदिकाव्ये श्रीमद्युद्धकाण्डे अष्टसप्ततितमः सर्गः॥

ityārṣe śrīmadrāmāyaṇe vālmīkīye ādikāvye śrīmadyuddhakāṇḍe aṣṭasaptatitamaḥ sargaḥ ||

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