One verse

Srimad Bhagavatam 7.12.20

7.12.20

अग्‍न्यर्थमेव शरणमुटजं वाद्रिकन्दरम् । श्रयेत हिमवाय्वग्निवर्षार्कातपषाट्‌स्वयम् ॥ २० ॥

agny-artham eva saranam utajam vadri-kandaram srayeta hima-vayv-agni- varsarkatapa-sat svayam

agni
the fire
artham
to keep
eva
only
saranam
a cottage
uta-jam
made of grass
va
or
adri-kandaram
a cave in a mountain
srayeta
the vanaprastha should take shelter of
hima
snow
vayu
wind
agni
fire
varsa
rain
arka
of the sun
atapa
shining
sat
enduring
svayam
personally.

A vanaprastha should prepare a thatched cottage or take shelter of a cave in a mountain only to keep the sacred fire, but he should personally practice enduring snowfall, wind, fire, rain and the shining of the sun.