Valmiki Ramayana Bala Kanda Sarga 3 Shloka 20
Original Shlokaशूर्पणख्याश्च संवादं विरूपकरणं तथा । वधं खरत्रिशिरसोरुत्थानं रावणस्य च ।।1.3.20।।
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शूर्पणख्या: Surpanakha's, संवादम् dialogue, तथा and, विरूपकरणम् her disfigurement, खरत्रिशिरसो: of Khara and Trisiras, वधम् slaughter, रावणस्य Ravana's, उत्थानम् च rise (beginning of efforts).
(He described) Rama's dialogue with Surpanakha, her disfigurement, the slaughter of Khara and Trisira, and the beginning of efforts by Ravana (to harm Rama).