Source: here.
The bhagavata purANa preserves the 5 anuShTubhs composed by glAva maitreya, the udgAtA of the kurus, when he was asked about the atomic doctrine by vidura vaichitravIrya. It contains a clear exposition of the atomic doctrine. It is interesting that these openly vaisheShika mantras are preserved along side the more theistic formulation of typical of the sAMkhya associated with pA~ncharatra. It may also suggest the source for the elements of atomism in vaiShNava tantras like the lakShmI tantraM.
maitreyovAcha :
चरमः सद्-विशेषाणाम्
अनेको ऽसंयुतः सदा \।
परमाणुः स विज्ञेयो
नृणाम् ऐक्य भ्रमो यतः \।\। ३।११।१
caramaH sad-visheShANAm aneko .asaMyutaH sadA |
paramANuH sa viGYeyo nR^iNAm aikya bhramo yataH || 3.11.1
pada:
maitreyaH | uvAcha |
charamaH | sat | visheShANAm | anekaH | asaMyutaH | sadA | parama-aNuH | saH |
viGYeyaH | nR^iNAm | aikya | bhramaH | yataH
maitreya said:
The ultimate reality is know to be made of numerous particles, which are always elemental, called paramANu and it is an error of men to consider it seen [existance] as continuous
सत एव पदार्थस्य
स्वरूपावस्थितस्य यत् \।
कैवल्यं परम-महान्
अविशेषो निरन्तरः \। \।३।११।२
sata eva padArthasya svarUpAvasthitasya yat |
kaivalyaM parama-mahAn avisheSho nirantaraH | |3.11.2
pada:
sataH | eva | pada-arthasya | svarUpa| avasthitasya | yat | kaivalyam | parama | mahAn | avisheShaH | nirantaraH |
These particles indeed comprise all substances, but retain their structure, even if the substance transforms, these are the eternally unchanging, original, supreme, indivisible [existence].
एवं कालो ऽप्य् अनुमितः
सौक्ष्म्ये स्थौल्ये च सत्तम \।
संस्थान-भुक्त्या भगवान्
अव्यक्तो व्यक्त-भुग् विभुः \।\। ३।११।३
evaM kAlo .apy anumitaH saukShmye sthaulye ca sattama |
saMsthAna-bhuktyA bhagavAn avyakto vyakta-bhug vibhuH || 3.11.3
pada:
evam | kAlaH | api | anumitaH | saukShmye | sthaulye | ca | sattama | saMsthAna | bhuktyA | bhagavAn | avyaktaH | vyakta-bhuk | vibhuH
O great [vidura], in the same way time also has its discrete divisions, which comprise its gross form and this can be measured by the movement and combination of particles; viShNu is that which is unmanifest, existing in movement and in potential.
स कालः परमाणुर् वै
यो भुङ्क्ते परमाणुताम् \।
सतो ऽविशेष-भुग् यस् तु
स कालः परमो महान् \।\।
sa kAlaH paramANur vai yo bhu~nkte paramANutAm |
sato .avisheSha-bhug yas tu sa kAlaH paramo mahAn || 3.11.4
pada:
saH | kAlaH | parama-aNuH | vai | yaH | bhu~nkte | parama-aNutAm | sataH | avisheSha-bhuk | yaH | tu | saH | kAlaH | paramaH | mahAn
Those discrete units of time, which are verily further indivisible, correspond to the time required by a paramANu to cover the space equivalent to a paramANu; this is verily the primal, supreme time.
अणुर् द्वौ परमाणू स्यात्
त्रसरेणुस् +++(अणु-)+++त्रयः स्मृतः \।
जालार्क-रश्म्य्-अवगतः
खम् एवानुपतन्न् अगात् \।\। ३।११।५
aNur dvau paramANU syAt trasareNus trayaH smRtaH |
jAlArka-rashmy-avagataH kham evAnupatan agAt || 3.11.5
pada:
aNuH | dvau | parama-aNu | syAt | trasareNuH | trayaH | smRtaH | jAla | arka | rashmi | avagataH | kham | eva | anupatan | agAt
Two paramANus are combine to form an aNu, and 3 aNus combine to form a trasareNu*; the rays of light emerging from a mesh can make these [trasareNus] move up in empty space.
* This idea follows the nyAya pattern of akshapAda as opposed to that provided by kaNAda.