Mahabharata 3.172.1

वैशंपायन उवाच · vaiśaṃpāyana uvāca

तस्यां रजन्यां व्युष्टायां धर्मराजो युधिष्ठिरःउत्थायावश्यकार्याणि कृतवान्भ्रतृभिः सह

tasyāṃ rajanyāṃ vyuṣṭāyāṃ dharmarājo yudhiṣṭhiraḥutthāyāvaśyakāryāṇi kṛtavānbhratṛbhiḥ saha

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