The Compendium of Kāśyapa 1.25.46

1.25.46

bhasmāṅgāratuṣādīnāmadhirohaṇasevanam
rodityakasmāttrasati chāyāśīlaviparyayaḥ

Mounting upon and resorting to ashes, burning coals, and husks; / he cries suddenly, is frightened, and experiences a change in complexion and character;