Shiva Purana
यदा स्पृष्टो मुनिस्तेन करेण त्रिपुरारिणा ॥ तदैव मुनिशार्दूल उत्ससर्ज? तपःक्रमम् ॥ २५॥
Only when the great sage was touched by the slayer of the Tripuras did he leave off his penance.
english translation
yadA spRSTo munistena kareNa tripurAriNA ॥ tadaiva munizArdUla utsasarja? tapaHkramam ॥ 25॥
hk transliteration by Sanscript