Śrīmad-Bhāgavatam 3.11.41
SB 3.11.41
Open the full passageSanskrit
daśottarādhikair yatra praviṣṭaḥ paramāṇuvat lakṣyate 'ntar-gatāś cānye koṭiśo hy aṇḍa-rāśayaḥ
Translation
The layers or elements covering the universes are each ten times thicker than the one before, and all the universes clustered together appear like atoms in a huge combination.