Valmiki Ramayana Sundara Kanda Sarga 30 Shloka 36
Original Shlokaप्राणत्यागश्च वैदेह्या भवेदनभिभाषणे।।5.30.36।। एष दोषो महान्हि स्यान्मम सीताभिभाषणे।
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अनभिभाषणे if I do not speak, वैदेह्याः of Vaidehi, प्राणत्यागश्च abandonement of life, भवेत् may be, सीताभिभाषणे on talking to Sita, मम to me, एषः such, महान् great, दोषः drawback, स्यात् will be.
"If I talk to Vaidehi it will be a great mistake on my part.If I do not speak to Vaidehi she may give up her life.