Valmiki Ramayana Aranya Kanda Sarga 48 Shloka 13
Original Shlokaतत्र त्वं वसती सीते राजपुत्रि मया सह। न स्मरिष्यसि नारीणां मानुषीणां मनस्विनि।।3.48.13।।
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राजपुत्रि princess, मनस्विनि highminded, सीते Sita, तत्र there, मया सह along with me, वसती while residing, मानुषीणाम् of human beings, नारीणाम् of women, न स्मरिष्यसि you will not think of.
O highminded princess, O Sita while living with me, you will not even think of other women.