Valmiki Ramayana Ayodhya Kanda Sarga 9 Shloka 10
Original Shlokaएवमुक्ता तया देव्या मन्थरा पापदर्शिनी। रामार्थमुपहिंसन्ती कुब्जा वचनमब्रवीत्।।2.9.10।।
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तया देव्या by that queen, एवम् in this way, उक्ता having been spoken to, पापदर्शिनी evileyed, मन्थरा Manthara, रामार्थम् Rama's interest, उपहिंसन्ती ruining, कुब्जा hunchback, अब्रवीत् said.
Thus addressed by the queen (Kaikeyi), the evileyed hunchback, Manthara, said with the intention to damage Rama's interest.