Valmiki Ramayana Aranya Kanda Sarga 2 Shloka 21
Original Shlokaपरस्पर्शात्तु वैदेह्याः न दुःखतरमस्तिमे। पितुर्विनाशात्सौमित्रे स्वराज्यहरणात्तथा।।3.2.21।।
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सौमित्रे O Lakshmana, वैदेह्याः Sita's, परस्पर्शात् the touch of a man other man, पितुः father's, विनाशात् more than demise, तथा in the same way, स्वराज्यहरणात् more than the the loss of my kingdom, मे to me, दुःखतरम् more painful, नास्ति is not.
O Lakshmana nothing is more sorrowful to me than the touch of Vaidehi by another. It is more painful to me than the death of my father or loss of my kingdom.