Mahabharata 12.226.3

अधीत्य वेदानखिलान्गुरुशुश्रूषणे रतःगुरूणामनृणो भूत्वा समावर्तेत यज्ञवित्

adhītya vedānakhilānguruśuśrūṣaṇe rataḥgurūṇāmanṛṇo bhūtvā samāvarteta yajñavit

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