Valmiki Ramayana 7.98.8
तस्मान्निर्यात्यतां सीता विवरं वा प्रयच्छ मे ।पाताले नाकपृष्ठे वा वसेयं सहितस्तया॥
tasmānniryātyatāṃ sītā vivaraṃ vā prayaccha me |pātāle nākapṛṣṭhe vā vaseyaṃ sahitastayā ||
Our plain-language meaning of this verse is waiting for scholar review.
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