Shiva Purana
तथा रक्षोधिपः साक्षाद्रावणो बलगर्वितः ॥ उद्धरन्स्वभुजैर्दीर्घैः कैलासं गिरिमात्मनः ॥ ४६ ॥
Similarly Ravana the lord of the demons himself was proud of his strength Lifting up mount Kailas with his long arms.
english translation
tathA rakSodhipaH sAkSAdrAvaNo balagarvitaH ॥ uddharansvabhujairdIrghaiH kailAsaM girimAtmanaH ॥ 46 ॥
hk transliteration by Sanscript