Shiva Purana
त्वदीयो रावणोऽपीह दुर्ज्जयस्सर्वथाखिलैः ॥ त्वद्दत्तवरदृप्तश्च महावीरस्त्रिलोकजित् ॥ २८ ॥
Rāvaṇa is your devotee. He is invincible in every respect to everyone. He is haughty due to the boons granted by you. He is a great hero who has conquered the three worlds.
english translation
tvadIyo rAvaNo'pIha durjjayassarvathAkhilaiH ॥ tvaddattavaradRptazca mahAvIrastrilokajit ॥ 28 ॥
hk transliteration by Sanscript