Bhagavad Gita
1.17

काश्यश्च परमेष्वासः शिखण्डी च महारथः | धृष्टद्युम्नो विराटश्च सात्यकिश्चापराजितः ||१७||

kāśhyaśh cha parameṣhvāsaḥ śhikhaṇḍī cha mahā-rathaḥ dhṛṣṭadyumno virāṭaśh cha sātyakiśh chāparājitaḥ

Translation

The King of Kashi (an expert archer), the great chariot warrior Shikhandi, Dhrishtadyumna, Virata, and the unconquerable Satyaki —

Interpretation

The Pandava allies are named. Shikhandi is significant — born as a woman in a previous life, he was destined to be the instrument of Bhishma's death, since Bhishma had vowed never to fight a woman or one who had been a woman.