SB 12.2.29

viṣṇor bhagavato bhānuḥ
 kṛṣṇākhyo ’sau divaṁ gataḥ
tadāviśat kalir lokaṁ
 pāpe yad ramate janaḥ
Synonyms: 
viṣṇoḥ — of Viṣṇu; bhagavataḥ — the Supreme Personality of Godhead; bhānuḥ — the sun; kṛṣṇa-ākhyaḥ — known as Kṛṣṇa; asau — He; divam — to the spiritual sky; gataḥ — having returned; tadā — then; aviśat — entered; kaliḥ — the Age of Kali; lokam — this world; pāpe — in sin; yat — in which age; ramate — take pleasure; janaḥ — the people.
Translation: 
The Supreme Lord, Viṣṇu, is brilliant like the sun and is known as Kṛṣṇa. When He returned to the spiritual sky, Kali entered this world, and people then began to take pleasure in sinful activities.