व्यपोहनस्तवनिरूपण-प्रसङ्गे नक्तभोजन-शिवव्रतविधिः (वार्षिक-प्रतिमास-क्रमः)
श्यामाकान्नघृतक्षीरैर् जितक्रोधो जितेन्द्रियः चतुर्दश्यामथाष्टम्याम् उपवासं च कारयेत्
śyāmākānnaghṛtakṣīrair jitakrodho jitendriyaḥ caturdaśyāmathāṣṭamyām upavāsaṃ ca kārayet
Having conquered anger and mastered the senses, one should offer meals of śyāmāka grain together with ghee and milk, and also undertake fasting on the fourteenth lunar day and on the eighth. Thus the paśu is disciplined and turned toward Pati, Lord Śiva.
Suta Goswami (narrating Shiva-vrata instructions within the Linga Purana discourse)
It prescribes inner purity (control of anger and senses) together with simple sāttvika offerings and fasts on caturdaśī and aṣṭamī, presenting vrata as a key support for effective Linga-pūjā.
Śiva is implied as Pati—the Lord toward whom the disciplined pashu turns; the verse emphasizes that approaching Shiva-tattva requires ethical restraint and sense-mastery, not merely external ritual.
Upavāsa on caturdaśī and aṣṭamī, combined with jitakrodha and jitendriya discipline—an applied Pāśupata-style purification supporting worship and loosening pāśa (bondage).