One verse

Srimad Bhagavatam 3.11.1

3.11.1

मैत्रेय उवाच चरम: सद्विशेषाणामनेकोऽसंयुत: सदा । परमाणु: स विज्ञेयो नृणामैक्यभ्रमो यत: ॥ १ ॥

maitreya uvaca caramah sad-visesanam aneko ’samyutah sada paramanuh sa vijneyo nrnam aikya-bhramo yatah

maitreyah uvaca
Maitreya said
caramah
ultimate
sat
effect
visesanam
symptoms
anekah
innumerable
asamyutah
unmixed
sada
always
parama-anuh
atoms
sah
that
vijneyah
should be understood
nrnam
of men
aikya
oneness
bhramah
mistaken
yatah
from which.

The material manifestation’s ultimate particle, which is indivisible and not formed into a body, is called the atom. It exists always as an invisible identity, even after the dissolution of all forms. The material body is but a combination of such atoms, but it is misunderstood by the common man.