Mahabharata 12.159.1

भीष्म उवाच · bhīṣma uvāca

कृतार्थो यक्ष्यमाणश्च सर्ववेदान्तगश्च यःआचार्यपितृभार्यार्थं स्वाध्यायार्थमथापि वा

kṛtārtho yakṣyamāṇaśca sarvavedāntagaśca yaḥācāryapitṛbhāryārthaṃ svādhyāyārthamathāpi vā

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