One verse

Srimad Bhagavatam 8.7.11

8.7.11

तथासुरानाविशदासुरेण रूपेण तेषां बलवीर्यमीरयन् । उद्दीपयन् देवगणांश्च विष्णु- र्दैवेन नागेन्द्रमबोधरूप: ॥ ११ ॥

tathasuran avisad asurena rupena tesam bala-viryam irayan uddipayan deva-ganams ca visnur daivena nagendram abodha-rupah

tatha
thereafter
asuran
unto the demons
avisat
entered
asurena
by the quality of passion
rupena
in such a form
tesam
of them
bala-viryam
strength and energy
irayan
increasing
uddipayan
encouraging
deva-ganan
the demigods
ca
also
visnuh
Lord Visnu
daivena
by the feature of goodness
naga-indram
unto the King of the serpents, Vasuki
abodha-rupah
by the quality of ignorance.

Thereafter, Lord Visnu entered the demons as the quality of passion, the demigods as the quality of goodness, and Vasuki as the quality of ignorance to encourage them and increase their various types of strength and energy.