Mahabharata 12.234.26

ये केचिद्विस्तरेणोक्ता नियमा ब्रह्मचारिणःतान्सर्वाननुगृह्णीयाद्भवेच्चानपगो गुरोः

ye kecidvistareṇoktā niyamā brahmacāriṇaḥtānsarvānanugṛhṇīyādbhaveccānapago guroḥ

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