Mahabharata 2.63.28
द्रौपद्युवाचददासि चेद्वरं मह्यं वृणोमि भरतर्षभसर्वधर्मानुगः श्रीमानदासोऽस्तु युधिष्ठिरः
draupadyuvācadadāsi cedvaraṃ mahyaṃ vṛṇomi bharatarṣabhasarvadharmānugaḥ śrīmānadāso'stu yudhiṣṭhiraḥ
Our plain-language meaning of this verse is waiting for scholar review.