Ramayana
विभीषणस्तु धर्मात्मा नित्यं धर्मे व्यवस्थितः । स्वाध्यायनियताहार उवास विजितेन्द्रियः ॥ 7-9-39 ॥
But the righteous Vibhishana, ever established in dharma, dwelt with his senses subdued, restrained in his food and devoted to the study of the sacred texts.
english translation