Narada Purana — Purva Bhaga, Shloka 30
Tithi-Nirṇaya for Vratas: Ekādaśī Rules, Saṅkrānti Punya-kāla, Eclipse Observances, and Prāyaścitta
भूतविद्धेति विख्यातास्रद्भिः शास्त्रविशारदैः । अत्यंतक्षयपक्षे तु परेद्युर्नापराह्णगा ॥ ३० ॥
bhūtaviddheti vikhyātāsradbhiḥ śāstraviśāradaiḥ | atyaṃtakṣayapakṣe tu paredyurnāparāhṇagā || 30 ||
Dalam kalangan orang beriman yang mahir akan śāstra, hal ini masyhur sebagai “Bhūtaviddhā”. Namun, apabila berlaku kṣaya yang amat kuat, ia hendaklah diperhatikan pada hari berikutnya—bukan pada waktu petang (hari yang dinamakan itu).
Narada (teaching within a dharma/vrata calendrical discussion)
Vrata: Amāvāsyā timing (bhūtaviddhā case)
Primary Rasa: shanta
Secondary Rasa: none
FAQs
It emphasizes śāstra-based precision in dharma: spiritual merit depends not only on devotion but also on correctly determining the observance time (kāla) when calendrical anomalies like tithi-kṣaya occur.
Bhakti is protected from error by following scriptural timing rules; the verse implies that sincere devotion should be aligned with correct vrata-kāla, especially when the tithi is ‘lost’ and the observance must shift to the next day.
Jyotiṣa/Vedāṅga calendrics (pañcāṅga logic): recognizing tithi-kṣaya and applying the rule that in extreme kṣaya cases the observance is on the next day, not in the aparāhṇa of the nominal day.