Chapter 1 · Arjuna's Despair · Sanjaya said
Bhagavad Gita 1.12 — Bhishma blows his conch
तस्य सञ्जनयन्हर्षं कुरुवृद्धः पितामहः। सिंहनादं विनद्योच्चैः शङ्खं दध्मौ प्रतापवान् ॥
tasya sañjanayanharṣaṃ kuruvṛddhaḥ pitāmahaḥ | siṃhanādaṃ vinadyoccaiḥ śaṅkhaṃ dadhmau pratāpavān ||
Meaning
To cheer Duryodhana, the old grandsire Bhishma, eldest of the Kurus, roared like a lion and blew his conch loudly.