Canto 3 -
Araṇya-kāṇḍa
Chapter 32: Śūrpaṇakhā Goes to Meet Rāvaṇa
Text 3.32.7

देवासुरविमर्देषु वज्राशनिकृतव्रणम्।
ऐरावतविषाणाग्रैरुद्धृष्टकिणवक्षसम्॥

devāsura-vimardeṣu vajrāśani-kṛta-vraṇam
airāvata-viṣāṇāgrair uddhṛṣṭa-kiṇa-vakṣasam

deva-asura-vimardeṣu = in battles with the devas and asuras; vajra-aśani-kṛta-vraṇam = he had wounds caused by the thunderbolt and lightning; airāvata-viṣāṇa-agraiḥ = caused by the tips of Airāvata’s tusks; uddhṛṣṭa-kiṇa-vakṣasam = his chest had the markings of scars.

He had wounds caused by the thunderbolt and lightning in battles with the devas and asuras. His chest had the markings of scars caused by the tips of Airāvata’s tusks.

Vajrāśani-kṛta-vraṇam indicates that Rāvaṇa was not assailable [by any mortal].