Mahabharata 12.77.1

युधिष्ठिर उवाच · yudhiṣṭhira uvāca

स्वकर्मण्यपरे युक्तास्तथैवान्ये विकर्मणितेषां विशेषमाचक्ष्व ब्राह्मणानां पितामह

svakarmaṇyapare yuktāstathaivānye vikarmaṇiteṣāṃ viśeṣamācakṣva brāhmaṇānāṃ pitāmaha

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