One verse

Srimad Bhagavatam 1.3.19

1.3.19

पञ्चदशं वामनकं कृत्वागादध्वरं बले: । पदत्रयं याचमान: प्रत्यादित्सुस्त्रिपिष्टपम् ॥ १९ ॥

pancadasam vamanakam krtvagad adhvaram baleh pada-trayam yacamanah pratyaditsus tri-pistapam

pancadasam
the fifteenth in the line
vamanakam
the dwarf brahmana
krtva
by assumption of
agat
went
adhvaram
arena of sacrifice
baleh
of King Bali
pada-trayam
three steps only
yacamanah
begging
pratyaditsuh
willing at heart to return
tri-pistapam
the kingdom of the three planeary systems.

In the fifteenth incarnation, the Lord assumed the form of a dwarf-brahmana (Vamana) and visited the arena of sacrifice arranged by Maharaja Bali. Although at heart He was willing to regain the kingdom of the three planeary systems, He simply asked for a donation of three steps of land.