One verse

Srimad Bhagavatam 4.19.23

4.19.23

यानि रूपाणि जगृहे इन्द्रो हयजिहीर्षया । तानि पापस्य खण्डानि लिङ्गं खण्डमिहोच्यते ॥ २३ ॥

yani rupani jagrhe indro haya-jihirsaya tani papasya khandani lingam khandam ihocyate

yani
all those which
rupani
forms
jagrhe
accepted
indrah
the King of heaven
haya
the horse
jihirsaya
with a desire to steal
tani
all those
papasya
of sinful activities
khandani
signs
lingam
the symbol
khandam
the word khanda
iha
here
ucyate
is said.

Whatever different forms Indra assumed as a mendicant because of his desire to seize the horse were symbols of atheistic philosophy.