One verse

Srimad Bhagavatam 10.2.4-5

10.2.4-5

एके तमनुरुन्धाना ज्ञातय: पर्युपासते । हतेषु षट्‌सु बालेषु देवक्या औग्रसेनिना ॥ ४ ॥ सप्तमो वैष्णवं धाम यमनन्तं प्रचक्षते । गर्भो बभूव देवक्या हर्षशोकविवर्धन: ॥ ५ ॥

eke tam anurundhānā jñātayaḥ paryupāsate hateṣu ṣaṭsu bāleṣu devakyā augraseninā saptamo vaiṣṇavaṁ dhāma yam anantaṁ pracakṣate garbho babhūva devakyā harṣa-śoka-vivardhanaḥ

eke
some of them
tam
unto Kaṁsa
anurundhānāḥ
exactly following his policy
jñātayaḥ
relatives
paryupāsate
began to agree with him
hateṣu
having been killed
ṣaṭsu
six
bāleṣu
children
devakyāḥ
born of Devakī
augraseninā
by the son of Ugrasena (Kaṁsa)
saptamaḥ
the seventh
vaiṣṇavam
of Lord Viṣṇu
dhāma
a plenary expansion
yam
unto whom
anantam
by the name Ananta
pracakṣate
is celebrated
garbhaḥ
embryo
babhūva
there was
devakyāḥ
of Devakī
harṣa-śoka-vivardhanaḥ
simultaneously arousing pleasure and lamentation

Some of their relatives, however, began to follow Kaṁsa’s principles and act in his service. After Kaṁsa, the son of Ugrasena, killed the six sons of Devakī, a plenary portion of Kṛṣṇa entered her womb as her seventh child, arousing her pleasure and her lamentation. That plenary portion is celebrated by great sages as Ananta, who belongs to Kṛṣṇa’s second quadruple expansion.