Shiva Purana
दिव्यवर्षसहस्राणि महेशानि पुनः पुरा । तपः प्रकुर्वतस्त्रस्तं मनः संयम्य वै मम ५ ।
Thousands of divine years, Lord Mahesha (Shiva) in the past performed intense penance. I, with my mind controlled, am now overwhelmed with fear.
english translation
divyavarSasahasrANi mahezAni punaH purA । tapaH prakurvatastrastaM manaH saMyamya vai mama 5 ।
hk transliteration by Sanscript