Here is the Sanskrit anuvad, Hindi anuvad, and English translation of Shraddhatraya-Vibhaga Yoga Chapter 17, Verse 17.5.
Sanskrit
अशास्त्रविहितं घोरं तप्यन्ते ये तपो जनाः । दम्भाहंकारसंयुक्ताः कामरागबलान्विताः ॥ १७.५ ॥
Hindi
जो मनुष्य शास्त्र विधि से रहित केवल मन:कल्पित घोर तप को तपते हैं तथा दम्भ और अहंकार से युक्त्त एवं कामना, आसक्ति और बल के अभिमान से भी युक्त्त हैं|
English
Those men who are selfish, corrupt, conceited, and false; whose actions are totally controlled by lust and passion; who perform terrible rituals that are forbidden by the Holy Scriptures.