हृषीकेशं तदा वाक्यमिदमाह महीपते।
सेनयोरुभयोर्मध्ये रथं स्थापय मेऽच्युत।।1.21।।
1.21 Arjuna said In the middle between the two armies, place my chariot, O krishna, so that I may behold those who stand here desirous to fight, and know with whom I must fight, when the battle is about to commence.
1.21 Sri Sankaracharya did not comment on this sloka. The commentary starts from 2.10.
Arjuna Uvaacha: Senayor ubhayormadhye ratham sthaapaya me’chyuta.Yaavad etaan nireekshe’ham yoddhukaamaan avasthitaan; Kair mayaa saha yoddhavyam asmin ranasamudyame.
arjunaḥ uvācha—Arjun said; senayoḥ—armies; ubhayoḥ—both; madhye—in the middle; ratham—chariot; sthāpaya—place; me—my; achyuta—Shree Krishna, the infallible One; yāvat—as many as; etān—these; nirīkṣhe—look; aham—I; yoddhu-kāmān—for the battle; avasthitān—arrayed; kaiḥ—with whom; mayā—by me; saha—together; yoddhavyam—must fight; asmin—in this; raṇa-samudyame—great combat