Bhagavatapurana 3.29.45

3.29.45

so 'nanto 'nta-karaḥ kālo 'nādir ādi-kṛd avyayaḥ /
janaṃ janena janayan mārayan mṛtyunāntakam //

45. He has no end, but He brings about the end of all; He is Kala without a beginning, but He is the beginning of all; He is changeless, He causes (every) creature to be born of parents and brings about the end of the Antaka (the Destroyer) by means of death.