rājavidyā rājaguhyayoga - Verse śloka 7
śloka 7
sarvabhūtāni kaunteya prakṛtiṃ yānti māmikām |
kalpakṣaye punastāni kalpādau visṛjāmyaham ||9-7||
Translation
O Kaunteya! At the end of a kalpa all beings merge into My Prakriti; and at the beginning of the next kalpa I create them again.