Valmiki Ramayana Yuddha Kanda Sarga 121 Shloka 19
Original Shlokaनेयमर्हतिचैश्वर्यंरावणान्तःपुरेशुभा । अनन्याहिमयासीताभास्करेणप्रभायथा ।।6.121.19।।
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शुभा auspicious, इयम् she, रावणान्तःपुरे in the gynaeceum of Ravana, ऐश्वर्यम् fortune, नार्हति, सीता Sita, भास्करेण even sun, प्रभायथा like the radiance, मया by me, अनन्याहि other than
" Auspicious Sita would not have cared for the fortunes in the gynaeceum of Ravana. She is just like the radiance of the sun attached to the sun, attached to me and none other."