Rudra-prasava-varṇana
The Manifestation and Naming of Rudra / Nīlalohita
कुर्यान्मूत्रं पुरीषं वा न भुञ्जीत पिबेन्न वा / मैथुनं वापि न चरेदुच्छिष्टानि च नोत्क्षिपेत्
kuryānmūtraṃ purīṣaṃ vā na bhuñjīta pibenna vā / maithunaṃ vāpi na careducchiṣṭāni ca notkṣipet
He should neither pass urine nor stool; he should neither eat nor drink; he should not engage in sexual union; and he should not cast away impure remnants (ucchiṣṭa).