यदि वाद्य भवान् युद्धे सूतपुत्रमुखान् रथान्
yadi vādya bhavān yuddhe sūtaputramukhān rathān
Sañjaya said: “If, in battle, you (choose to) sound the war-instruments and confront the chariots led by the charioteer’s son (Karna) and his foremost allies…”
संजय उवाच
The line frames a conditional counsel: before engaging a formidable enemy led by Karṇa, one must weigh resolve, preparedness, and the ethical burden of initiating or escalating combat.
Sañjaya, narrating events to Dhṛtarāṣṭra, introduces a conditional scenario about entering battle against the chariot-warriors led by Karṇa, setting up advice or consequences that follow in the surrounding verses.