Valmiki Ramayana Yuddha Kanda Sarga 121 Shloka 1
Original Shlokaएतच्छ्रुत्वाशुभंवाक्यंपितामहसमीरितम् । अङ्केनादायवैदेहिमुत्पपातविभावसुः ।।6.121.1।।
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विभावसुः fire god, पितामहसमीरितम् address of Brahma, शुभम् auspicious, एतत् these, वाक्यम् words, श्रुत्वा hearing, वैदेहीम् Vaidehi, अङ्केन under arms, आदाय picking, उत्पपात arose
On hearing creator Brahma's address to Rama, fire god emerged picking auspicious Vaidehi in his arms. The Fire god restores Sita to Sri Rama testifying her purity.