Shiva Purana
तदानयनरूपं हि व्याजं कृत्वा महेश्वरः ॥ ज्योतिर्लिंगस्वरूपेण चिताभूमौ प्रतिष्ठितः ॥ ३९॥
Under the pretext of fetching him, lord Śiva was installed in the cremation ground in the form of Jyotirliṅga.
english translation
tadAnayanarUpaM hi vyAjaM kRtvA mahezvaraH ॥ jyotirliMgasvarUpeNa citAbhUmau pratiSThitaH ॥ 39॥
hk transliteration by Sanscript