Bhagavad Gita: Chapter 1, Verse 3

पश्यैतां पाण्डुपुत्राणामाचार्य महतीं चमूम् ।
व्यूढां द्रुपदपुत्रेण तव शिष्येण धीमता ॥ १-३॥

paśyaitāṃ pāṇḍuputrāṇām ācārya mahatīṃ camūm
vyūḍhāṃ drupadaputreṇa tava śiṣyeṇa dhīmatā 1.3

O, Master! Behold the mighty army of the sons of Pandu, so expertly arrayed for battle by your own intelligent disciple, the son of Drupad. (Dhrishtadyumna, Brother of Draupadi)