Valmiki Ramayana Aranya Kanda Sarga 56 Shloka 34
Original Shlokaसा तु शोकपरीताङ्गी मैथिली जनकात्मजा। राक्षसीवशमापन्ना व्याघ्रीणां हरिणी यथा।।3.56.34।।
1 source checked for this shloka
शोकपरीताङ्गी engulfed in grief, जनकात्मजा daughter of Janaka, सा मैथिली that Sita, हरिणी doe, व्याघ्रीणां यथा as among tigresses, राक्षसीवशम् under the control of the demonesses, आपन्ना was placed.
Sita, daughter of Janaka, engulfed in grief found herself like a doe under the control of tigresses.