Mahabharata 6.39.18

सत्कारमानपूजार्थं तपो दम्भेन चैव यत्क्रियते तदिह प्रोक्तं राजसं चलमध्रुवम्

satkāramānapūjārthaṃ tapo dambhena caiva yatkriyate tadiha proktaṃ rājasaṃ calamadhruvam

Our plain-language meaning of this verse is waiting for scholar review.