One verse

Srimad Bhagavatam 8.19.6

8.19.6

यं विनिर्जित्य कृच्छ्रेण विष्णु: क्ष्मोद्धार आगतम् । आत्मानं जयिनं मेने तद्वीर्यं भूर्यनुस्मरन् ॥ ६ ॥

yam vinirjitya krcchrena visnuh ksmoddhara agatam atmanam jayinam mene tad-viryam bhury anusmaran

yam
whom
vinirjitya
after conquering
krcchrena
with great difficulty
visnuh
Lord Visnu in His incarnation as a boar
ksma-uddhare
at the time when the earth was delivered
agatam
appeared before Him
atmanam
personally, Himself
jayinam
victorious
mene
considered
tat-viryam
the prowess of Hiranyaksa
bhuri
constantly, or more and more
anusmaran
thinking about.

When delivering the earth from the Garbhodaka Sea, Lord Visnu, in His incarnation as a boar, killed Hiranyaksa, who had appeared before Him. The fight was severe, and the Lord killed Hiranyaksa with great difficulty. Later, as the Lord thought about the uncommon prowess of Hiranyaksa, He felt Himself victorious indeed.