Bhagavatapurana 10.1.7

10.1.7

vīryāṇi tasyākhila-deha-bhājām antar bahiḥ pūruṣa-kāla-rūpaiḥ /
prayacchato mṛtyum utāmṛtaṃ ca māyā-manuṣyasya vadasva vidvan //

7. O Sage, be pleased to discourse (for my benefit) on the glorious powers and deeds of that Krishna who has at His own will assumed a human form and who, in the forms of Purusha and Kala, pervades, in and out, all embodied beings, and leads them to death as well as Moksha.