Ramayana
लङ्कामपि पुरा नीतामशोकवनिकां गताम् । रक्षसां वशमापन्नां कथं रामो न कुत्सते ॥ 7-43-18 ॥
She was once taken to Lanka and dwelt in the Ashoka grove, fallen under the power of the Rakshasas; how is it that Rama does not reproach her?
english translation