Mahabharata 5.178.26

गुरुं न हन्यां समरे ब्राह्मणं च विशेषतःविशेषतस्तपोवृद्धमेवं क्षान्तं मया तव

guruṃ na hanyāṃ samare brāhmaṇaṃ ca viśeṣataḥviśeṣatastapovṛddhamevaṃ kṣāntaṃ mayā tava

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