Shiva Purana
महातमो विलोमश्च विलोपश्चापि कंटक॥ तीव्रवेगः करालश्च विकरालः प्रकंपनः ॥ २७॥
The greatest is the inverse and the elimination of the thorn. It was very fast and terrible and it was shaking terribly.
english translation
mahAtamo vilomazca vilopazcApi kaMTaka॥ tIvravegaH karAlazca vikarAlaH prakaMpanaH ॥ 27॥
hk transliteration by Sanscript