One verse

Srimad Bhagavatam 11.18.3

11.18.3

केशरोमनखश्मश्रुमलानि बिभृयाद् दत: । न धावेदप्सु मज्जेत त्रिकालं स्थण्डिलेशय: ॥ ३ ॥

keśa-roma-nakha-śmaśru- malāni bibhṛyād dataḥ na dhāved apsu majjeta tri kālaṁ sthaṇḍile-śayaḥ

keśa
hair on the head
roma
bodily hair
nakha
fingernails and toenails
śmaśru
facial hair
malāni
bodily waste products
bibhṛyāt
one should tolerate
dataḥ
the teeth
na dhāvet
should not clean
apsu
in water
majjeta
should bathe
tri-kālam
three times a day
sthaṇḍile
on the earth
śayaḥ
lying down

The vānaprastha should not groom the hair on his head, body or face, should not manicure his nails, should not pass stool and urine at irregular times and should not make a special endeavor for dental hygiene. He should be content to take bath in water three times daily and should sleep on the ground.