CC Ādi 5.46

yāṅhā haite viśvotpatti, yāṅhāte pralaya
sei puruṣera saṅkarṣaṇa samāśraya
Word for word: 
yāṅhā haite — from whom; viśva-utpatti — the creation of the material cosmic manifestation; yāṅhāte — in whom; pralaya — merging; sei puruṣera — of that Supreme Personality of Godhead; saṅkarṣaṇa — Saṅkarṣaṇa; samāśraya — the original shelter.
Translation: 
Saṅkarṣaṇa is the original shelter of the puruṣa, from whom this world is created and in whom it is dissolved.