Adhyaya 89: शौचाचारलक्षणम् — सदाचार, भैक्ष्यचर्या, प्रायश्चित्त, द्रव्यशुद्धि, आशौच-निर्णय
शाकमूलफलादीनां धान्यवच्छुद्धिरिष्यते मार्जनोन्मार्जनैर् वेश्म पुनःपाकेन मृन्मयम्
śākamūlaphalādīnāṃ dhānyavacchuddhiriṣyate mārjanonmārjanair veśma punaḥpākena mṛnmayam
For vegetables, roots, fruits, and the like, purification is prescribed just as for grains. A dwelling is made pure by sweeping and cleansing, and earthenware is made pure by being baked again.
Suta Goswami (narrating Purāṇic dharma to the sages of Naimiṣāraṇya)
It sets practical śauca standards for Shiva-pūjā—purifying offerings (vegetables, roots, fruits) like grains, keeping the worship-space clean by sweeping, and ensuring earthen vessels are ritually fit by re-baking.
Shiva as Pati is approached through disciplined purity: external cleanliness supports inner śuddhi of the pashu (bound soul), reducing pasha (impurity/bondage) that obstructs steady worship and grace.
Ritual śauca as a preparatory limb of Shiva-pūjā—cleaning the altar-space and properly purifying materials and vessels—supporting the focused mind required for Pāśupata-oriented devotion and practice.