Shiva Purana
एतत्सर्वं समाख्यातं शिवरात्रिव्रतं शुभम् ॥ व्रतराजेति विख्यातं किमन्यच्छ्रोतुमिच्छसि ॥ १०२ ॥
Thus I have narrated the auspicious Śivatātri Vrata entirely. It is famous as the chief of sacred rites. What else do you wish to hear?
english translation
etatsarvaM samAkhyAtaM zivarAtrivrataM zubham ॥ vratarAjeti vikhyAtaM kimanyacchrotumicchasi ॥ 102 ॥
hk transliteration by Sanscript