Bhagavad Gita Chapter 11.32
kālo ’smi loka-kṣaya-kṛt pravṛddho
lokān samāhartum iha pravṛttaḥ
ṛte ’pi tvāḿ na bhaviṣyanti sarve
ye ’vasthitāḥ praty-anīkeṣu yodhāḥ
The Supreme Personality of Godhead said: Time I am, the great destroyer of the worlds, and I have come here to destroy all people. With the exception of you [the Pandavas], all the soldiers here on both sides will be slain.