अत्रिसंहिता - शौच्य

अभक्ष्यपरिहारश्च संसर्गश्चाप्यनिन्दितैः ।
आचारेषु व्यवस्थानं शौचमित्यभिधीयते ॥

- अत्रिसंहिता

One must not eat bad food. One must befriend virtuous people. One must always follow the rules of moral conduct. These three habits constitute moral cleanliness.

- Atrisamhita