One verse

Srimad Bhagavatam 10.76.4

10.76.4

इति मूढ: प्रतिज्ञाय देवं पशुपतिं प्रभुम् । आराधयामास नृप: पांशुमुष्टिं सकृद्ग्रसन् ॥ ४ ॥

iti mūḍhaḥ pratijñāya devaṁ paśu-patiṁ prabhum ārādhayām āsa nṛpaḥ pāṁśu-muṣṭiṁ sakṛd grasan

iti
with these words
mūḍhaḥ
the fool
pratijñāya
having vowed
devam
the lord
paśu-patim
Śiva, the protector of animallike men
prabhum
his master
āradhayām āsa
worshiped
nṛpaḥ
the King
pāṁśu
of dust
muṣṭim
a handful
sakṛt
once (daily)
grasan
eating

Having thus made his vow, the foolish King proceeded to worship Lord Paśupati [Śiva] as his deity by eating a handful of dust each day, and nothing more.