Mahabharata 3.278.20
नित्यशश्चार्जवं तस्मिन्स्थितिस्तस्यैव च ध्रुवासंक्षेपतस्तपोवृद्धैः शीलवृद्धैश्च कथ्यते
nityaśaścārjavaṃ tasminsthitistasyaiva ca dhruvāsaṃkṣepatastapovṛddhaiḥ śīlavṛddhaiśca kathyate
Our plain-language meaning of this verse is waiting for scholar review.