Tithi-Nirṇaya for Vratas: Ekādaśī Rules, Saṅkrānti Punya-kāla, Eclipse Observances, and Prāyaścitta
द्वादश्यां विद्यते किंचिद्दशमीसंयुता यदि । दिनक्षये द्वितीयैव सर्वेषां परिकीर्तितां ॥ ४६ ॥
dvādaśyāṃ vidyate kiṃciddaśamīsaṃyutā yadi | dinakṣaye dvitīyaiva sarveṣāṃ parikīrtitāṃ || 46 ||
ਜੇ ਦ੍ਵਾਦਸ਼ੀ ਵਿੱਚ ਦਸ਼ਮੀ ਨਾਲ ਥੋੜ੍ਹਾ ਜਿਹਾ ਵੀ ਸੰਯੋਗ ਹੋਵੇ, ਤਾਂ ਦਿਨ ਦੇ ਅੰਤ ਤੇ ਸਭ ਲਈ ਕੇਵਲ ‘ਦੂਜੀ’ (ਉੱਤਰ) ਹੀ ਤਿਥੀ ਘੋਸ਼ਿਤ ਕੀਤੀ ਗਈ ਹੈ।
Sanatkumara (in dialogue with Narada)
Vrata: Ekadashi (context: pāraṇā/selection around Dvādaśī)
Primary Rasa: shanta
Secondary Rasa: none
It teaches that vows (vratas) must be performed with correct tithi-judgment (nirṇaya); accuracy in timing preserves the sanctity and fruit of the observance.
By emphasizing precise observance of sacred days like Dvādaśī in alignment with the pañcāṅga, it supports disciplined Vishnu-bhakti where devotion is expressed through regulated vrata practice.
It reflects Jyotiṣa/Vedāṅga application—tithi conjunction (saṁyoga) and day-end (dina-kṣaya) rules used to decide the proper observance day in Narada Purana rituals.