CC Madhya 21.86

brahmāṇḍānurūpa brahmāra śarīra-vadana
ei-rūpe pāli āmi brahmāṇḍera gaṇa
Word for word: 
brahmāṇḍa-anurūpa — according to the size of a universe; brahmāra — of Lord Brahmā; śarīra-vadana — heads on the body; ei-rūpe — in this way; pāli āmi — I maintain; brahmāṇḍera gaṇa — all the innumerable groups of universes.
Translation: 
“ ‘According to the size of the universe, there are so many heads on the body of Brahmā. In this way I maintain innumerable universes [brahmāṇḍas].