Valmiki Ramayana Yuddha Kanda Sarga 116 Shloka 15
Original Shlokaततोऽब्रवीद्धरिवरःसीतामप्रतिजल्पतीम् ।।6.116.15।। किंत्वंचिन्तयसेदेविकिं च मांनाभिभाषसे ।
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ततः then, हरिवरः monkey chief, अप्रतिजल्पतीम् not replying, सीताम् Sita, अब्रवीत् spoke, देवि Devi, त्वम् you, किम् What चिन्तयसे thinking, माम् me, किम् why, नाभिभाषसे not answering
Then seeing Sita not answering him, the monkey chief asked her" Why are you not replying. What are you thinking?"