deva-dvija-guru-prājña-
pūjanaḿ śaucam ārjavam
brahmacaryam ahiḿsā ca
śārīraḿ tapa ucyate
Translation
Austerity of the body consists in worship of the Supreme Lord, the brahmanas, the spiritual master, and superiors like the father and mother, and in cleanliness, simplicity, celibacy and nonviolence.