Valmiki Ramayana 7.10.10

दशवर्षसहस्रं तु निराहारो दशाननः ।पूर्णे वर्षसहस्रे तु शिरश्चाग्नौ जुहाव सः॥

daśavarṣasahasraṃ tu nirāhāro daśānanaḥ |pūrṇe varṣasahasre tu śiraścāgnau juhāva saḥ ||

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