Canto 3 -
Araṇya-kāṇḍa
Chapter 69: Rāma and Lakṣmaṇa Meet Kabandha
Text 3.69.17

एवमुक्तस्तु कुपितः खड्गमुद्धृत्य लक्ष्मणः।
कर्णनासौ स्तनौ चास्या निचकर्तारिसूदनः॥

evam uktas tu kupitaḥ khaḍgam uddhṛtya lakṣmaṇaḥ
karṇa-nāsau stanau cāsyā nicakartāri-sūdanaḥ

evam = this; uktaḥ tu = when she said to Him; kupitaḥ = became angry; khaḍgam = His sword; uddhṛtya = then took out; lakṣmaṇaḥ = Lakṣmaṇa; karṇa-nāsau = ears, nose; stanau = breasts; ca = and; asyāḥ = her; nicakarta = and cut; ari-sūdanaḥ = the killer of His enemies.

When she said this to Him, Lakṣmaṇa became angry. The killer of His enemies then took out His sword and cut her ears, nose and breasts.