Rāmāyaṇacampū 1.40

1.40

"Once, when Sunda was slain, Mārīca attacked the pot-born sage [Agastya], and through his curse became a demon; Tāṭakā too became a man-eater."
"She, bringing ruin to the land along with her son who possesses the strength of a thousand elephants endowed by Brahmā, must be slain by you." Hearing him, Rāma hesitated over the killing of a woman.
Moreover, pointing to Mantharā, the daughter of Virocana, who bore a burden of offenses against the earth and was slain by Indra, and to the mother of Bhārgava, whose destruction was wrought by Janārdana, he dispelled the great hesitation of the son of Daśaratha regarding the killing of Sunda's wife.
The slaying of Sunda's beloved was promised by him who had heard the account; / his bow seemed to echo that very [promise] under the guise of the twanging sound of its string. (40)