SB 10.85.34
rsir uvaca
evam sañcoditau matra
ramah krsnas ca bharata
sutalam samvivisatur
yoga-mayam upasritau
Translation:
The sage Sukadeva said: Thus entreated by Their mother, O Bharata, Balarama and Krsna employed Their mystic Yoga-maya potency and entered the region of Sutala.