Adhyaya 89: शौचाचारलक्षणम् — सदाचार, भैक्ष्यचर्या, प्रायश्चित्त, द्रव्यशुद्धि, आशौच-निर्णय
सूतिकाशौचसंयुक्तः शावाशौचसमन्वितः संस्पृशेन्न रजस्तासां स्पृष्ट्वा स्नात्वैव शुध्यति
sūtikāśaucasaṃyuktaḥ śāvāśaucasamanvitaḥ saṃspṛśenna rajastāsāṃ spṛṣṭvā snātvaiva śudhyati
ಸೂತಿಕಾ-ಅಶೌಚ ಅಥವಾ ಶಾವ-ಅಶೌಚ ಹೊಂದಿರುವವನು ರಜಸ್ವಲೆಯರ ಸ್ಪರ್ಶ ಮಾಡಬಾರದು. ಸ್ಪರ್ಶವಾದರೆ ಸ್ನಾನ ಮಾಡಿದಾಗಲೇ ಶುದ್ಧಿ ದೊರೆಯುತ್ತದೆ।
Suta Goswami (narrating Purana-dharma to the sages of Naimisharanya)
It defines eligibility and ritual cleanliness (śauca) for approaching the Linga: during childbirth-impurity or death-impurity one must avoid additional sources of impurity, and if contact occurs, bathing restores fitness for Shiva-puja.
Shiva as Pati is ever pure (nitya-śuddha); the verse addresses the Pashu’s embodied condition, where purity disciplines reduce pasha-like obstructions so the devotee may approach Shiva’s worship with proper adhikāra.
A shauca rule: avoidance of contact with rajas during periods of ashaucha, and purification through snāna (bath), supporting disciplined Shaiva sadhana and continuity of Linga-puja.