Valmiki Ramayana Sundara Kanda Sarga 34 Shloka 27
Original Shlokaसीतायाश्चिन्तितं बुद्ध्वा हनुमान्मारुतात्मजः।।5.34.27।। श्रोत्रानुकूलैर्वचनैस्तदा तां संप्रहर्षयत्।
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मारुतात्मजः son of the Windgod, हनुमान् Hanuman, सीतायाः Sita's, चिन्तितम् thought, बुद्ध्वा understood, तदा then, ताम् her, श्रोत्रानुकूलैः pleasing to hear, वचनैः by the words, सम्प्रहर्षयत् pleased.
Hanuman, son of the Windgod understood what was going on in Sita's mind and spoke pleasing words that brought joy in her.