Shiva Purana
महान्कालो व्यतीयाय तपतस्तस्य वै मुनेः ॥ शिवपादाम्बुजासक्तमनसो धैर्य्यशालिनः ॥ ९॥
A long time elapsed, O sage, as he boldly performed penance with his mind attached to the lotus-like feet of Śiva
english translation
mahAnkAlo vyatIyAya tapatastasya vai muneH ॥ zivapAdAmbujAsaktamanaso dhairyyazAlinaH ॥ 9॥
hk transliteration by Sanscript