Valmiki Ramayana Sundara Kanda Sarga 42 Shloka 19
Original Shlokaचारुपल्लवपुष्पाढ्यं यं सीता स्वयमास्थिता। प्रवृद्धश्शिंशुपावृक्ष स्स च तेनाभिरक्षितः।।5.42.19।।
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सीता Sita, चारुपल्लवपुष्पाढ्यम् a tree with lovely tender leaves and flowers, यम् whom, स्वयम् personally, आस्थिता she resorted, सः that, प्रवृद्धः large, शिंशुपावृक्षः simsupa tree, तेन by him, अभिरक्षितः is saved from destruction.
"He has spared the simsupa tree with lovely, tender leaves and flowers which is a chosen resort by Sita.