Shiva Purana
घोरेण तपसा लब्धं रावणाख्येन रक्षसा॥ तल्लिंगं स्थापयामास गोकर्ण गणनायकः ॥ १४॥
That phallic image secured by the Rākṣasa Rāvaṇa as a result of severe penance was installed by Gaṇanāyaka at Gokarṇa.
english translation
ghoreNa tapasA labdhaM rAvaNAkhyena rakSasA॥ talliMgaM sthApayAmAsa gokarNa gaNanAyakaH ॥ 14॥
hk transliteration by Sanscript