One verse

Srimad Bhagavatam 6.13.3

6.13.3

श्रीराजोवाच इन्द्रस्यानिर्वृतेर्हेतुं श्रोतुमिच्छामि भो मुने । येनासन् सुखिनो देवा हरेर्दु:खं कुतोऽभवत् ॥ ३ ॥

sri-rajovaca indrasyanirvrter hetum srotum icchami bho mune yenasan sukhino deva harer duhkham kuto ’bhavat

sri-raja uvaca
King Pariksit inquired
indrasya
of King Indra
anirvrteh
of the moroseness
hetum
the reason
srotum
to hear
icchami
I wish
bhoh
O my lord
mune
O great sage, Sukadeva Gosvami
yena
by which
asan
were
sukhinah
very happy
devah
all the demigods
hareh
of Indra
duhkham
moroseness
kutah
from where
abhavat
was.

Maharaja Pariksit inquired from Sukadeva Gosvami: O great sage, what was the reason for Indra’s unhappiness? I wish to hear about this. When he killed Vrtrasura, all the demigods were extremely happy. Why, then, was Indra himself unhappy?