Mahabharata 12.338.16

रुद्र उवाच · rudra uvāca

त्वत्प्रसादेन भगवन्स्वाध्यायतपसोर्ममकुशलं चाव्ययं चैव सर्वस्य जगतस्तथा

tvatprasādena bhagavansvādhyāyatapasormamakuśalaṃ cāvyayaṃ caiva sarvasya jagatastathā

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