Shiva Purana — Vayaviya Samhita, Shloka 13
मन्त्रसिद्ध्यर्थं गुरुपूजा–आज्ञा–पौरश्चर्यविधिः / Guru-Authorization, Offerings, and Puraścaraṇa for Mantra-Siddhi
नक्षत्रे शुभयोगे च सर्वदोषविवर्जिते । अनुगृह्य ततो दद्याज्ज्ञानं मम यथाविधि । स्वरेणोच्चारयेत्सम्यगेकांते ऽतिप्रसन्नधीः । उच्चार्योच्चारयित्वा तमावयोर्मंत्रमुत्तमम्
nakṣatre śubhayoge ca sarvadoṣavivarjite | anugṛhya tato dadyājjñānaṃ mama yathāvidhi | svareṇoccārayetsamyagekāṃte 'tiprasannadhīḥ | uccāryoccārayitvā tamāvayormaṃtramuttamam
当星宿与吉祥之瑜伽相应，且远离一切过失之时，先赐加持，然后应依仪轨传授我之此智。于幽静处，以正确声调，心极澄明欢悦，正当诵持；既自诵又令其诵毕，当传授我二者（师与弟子）共有之最上真言。
Lord Shiva (teaching the discipline of mantra-initiation and transmission)
Tattva Level: pati
Shiva Form: Sadāśiva
Role: teaching
FAQs
It teaches that Shiva-knowledge and the liberating mantra are not merely intellectual: they are transmitted through grace (anugraha), right procedure (vidhi), and inner purity, aligning with Shaiva Siddhanta where Pati (Shiva) grants release through His favor and right upadesha.
Though the verse speaks of mantra and knowledge, it supports Saguna upasana—where Shiva is approached through revealed mantra, disciplined recitation, and consecrated practice—often centered on Linga worship, japa, and guru-given instruction.
Choose an auspicious, defect-free time; receive the teaching by grace; perform mantra-japa in solitude (ekanta) with correct intonation (svara), and transmit/receive it through proper guru-disciple recitation—i.e., a diksha-style, rule-governed mantra practice.