Devibhagavatapurana 3.28.22

3.28.22

pañcavaṭyāṃ vasan rāmo rāvaṇāvarajāṃ vane |
śūrpaṇakhāṃ virūpāṃ vai cakārātismarāturām ||

Râmachandra went to the forest Pañchavatî. One day the youngest sister of Râvana, named Sûrpanakhâ became very passionate and came to Râma; whereon Râmachandra disfigured her by cutting off her nose and ears.