Srimad Bhagavatam Canto 03, Chapter 08, Text 11

SB 3.8.11

so ’ntah sarire ’rpita-bhuta-suksmah
 kalatmikam saktim udirayanah
uvasa tasmin salile pade sve
 yathanalo daruni ruddha-viryah
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Just like the strength of fire within fuel wood, the Lord remained within the water of dissolution, submerging all the living entities in their subtle bodies. He lay in the self-invigorated energy called kala.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
After the three worlds — the upper, lower and middle planetary systems — merged into the water of dissolution, the living entities of all the three worlds remained in their subtle bodies by dint of the energy called kala. In this dissolution, the gross bodies became unmanifest, but the subtle bodies existed, just like the water of the material creation. Thus the material energy was not completely wound up, as is the case in the full dissolution of the material world.
Srimad Bhagavatam Canto 03, Chapter 08, Text 10
Srimad Bhagavatam Canto 03, Chapter 08, Text 12