Adhyaya 89: शौचाचारलक्षणम् — सदाचार, भैक्ष्यचर्या, प्रायश्चित्त, द्रव्यशुद्धि, आशौच-निर्णय
द्वादश्यां धर्मतत्त्वज्ञं श्रौतस्मार्तप्रवर्तकम् त्रयोदश्यां जडां नारीं सर्वसंकरकारिणीम्
dvādaśyāṃ dharmatattvajñaṃ śrautasmārtapravartakam trayodaśyāṃ jaḍāṃ nārīṃ sarvasaṃkarakāriṇīm
于第十二个朔望日,(当敬奉)通达法之真实原则者,能护持并弘扬吠陀之仪轨(śrauta)与斯摩尔塔(Smārta)之法度。于第十三日,(当避)愚钝之女;彼能引生种种紊乱与有害的杂糅,败坏正当次第。
Suta Goswami
It links Shiva-oriented observance to dharmic preparedness: honoring a dharma-knower who sustains śrauta and smārta practice supports purity and right order, which are prerequisites for effective Linga-puja.
Implicitly, Shiva as Pati is approached through dharma and disciplined ritual life; confusion (saṃkara) strengthens pasha (bondage), while clear dharma supports the pashu’s movement toward Shiva’s grace.
Tithi-based conduct (vrata/niyama) and association with dharma-upholding teachers—supporting śrauta-smārta ritual order as a foundation for Shaiva sadhana and Pashupata-aligned self-purification.