Ramayana
विमुक्तकवचस्तत्र वध्यमानो ऽपि रावणिः । त्रिदशैः सुमहावीर्यैर्न चकार च किञ्चन ॥ 7-29-25 ॥
There, although his armor had been cast off and he was being struck by the divine ones of great valor, Ravani paid it no heed at all.
english translation