Mahabharata 1.179.13

ब्राह्मणो नावमन्तव्यः सद्वासद्वा समाचरन्सुखं दुःखं महद्ध्रस्वं कर्म यत्समुपागतम्

brāhmaṇo nāvamantavyaḥ sadvāsadvā samācaransukhaṃ duḥkhaṃ mahaddhrasvaṃ karma yatsamupāgatam

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