Bhagavad Gita Chapter 11, Verse 34

द्रोणं च भीष्मं च जयद्रथं च कर्णं तथान्यानपि योधवीरान् | मया हतांस्त्वं जहि मा व्यथिष्ठा युध्यस्व जेतासि रणे सपत्नान् ||

droṇaṁ ca bhīṣmaṁ ca jayadrathaṁ ca karṇaṁ tathānyān api yodha-vīrān mayā hatāṁs tvam jahi mā vyathiṣṭhā yudhyasva jetāsi raṇe sapatnān

Drona, Bhishma, Jayadratha, Karna, and other heroic warriors are already slain by Me. You kill them; do not be disturbed. Fight, you will conquer your enemies in battle.

Krishna names specific warriors who are already slain and urges Arjuna to fight. 'Droṇaṁ ca bhīṣmaṁ ca jayadrathaṁ ca karṇaṁ'—Drona, Bhishma, Jayadratha, and Karna. 'Tathānyān api yodha-vīrān'—and also (tathā api) other (anyān) heroic warriors (yodha-vīrān). 'Mayā hatāṁs tvam jahi mā vyathiṣṭhā'—already slain (hatān) by Me (mayā), you (tvam) kill them (jahi), do not (mā) be disturbed (vyathiṣṭhāḥ). 'Yudhyasva jetāsi raṇe sapatnān'—fight (yudhyasva), you will conquer (jetāsi) your enemies (sapatnān) in battle (raṇe). Krishna specifically names the great warriors—Drona, Bhishma, Jayadratha, Karna—and explains that they are already slain by Time (the cosmic form). Arjuna should simply complete what is already done, without being disturbed. This verse shows that even the mightiest warriors are subject to Time's will.