Shiva Purana
विजितेंद्रियवर्गस्य यमेन नियमेन च ॥ पूर्वपापहरो योगो विरक्तस्यैव कथ्यते ॥ ३५ ॥
The Yoga that removes previous sins, belongs only to the unattached who has conquered the group of sense-organs by restraints and observances.
english translation
vijiteMdriyavargasya yamena niyamena ca ॥ pUrvapApaharo yogo viraktasyaiva kathyate ॥ 35 ॥
hk transliteration by Sanscript