Narada Purana — Purva Bhaga, Shloka 91
The Explanation of the Twelve-Month Caturthī Vrata
सर्वासु च चतुर्थीषु शुक्लास्वप्यसितासु च । विघ्नेश एव देवेशः संपूज्यो भक्तितत्परैः ॥ ९१ ॥
sarvāsu ca caturthīṣu śuklāsvapyasitāsu ca | vighneśa eva deveśaḥ saṃpūjyo bhaktitatparaiḥ || 91 ||
凡逢第四日（Caturthī）——无论在白分或黑分——唯应以至诚奉爱（bhakti）礼敬障碍主毗伽尼沙（Vighneśa），诸天之主。
Narada (in instruction within the Narada–Sanatkumara dialogue frame)
Vrata: Caturthī-vrata (general, all months/fortnights)
Primary Rasa: bhakti
Secondary Rasa: shanta
FAQs
It teaches that devotion-focused worship of Vighneśa is appropriate on every Caturthī, emphasizing regular, time-aligned (tithi-based) practice rather than occasional worship.
The verse makes bhakti the primary qualification—those “intent on devotion” should worship—showing that inner reverence and dedication are central to successful pūjā, beyond mere ritual formality.
It uses calendrical discipline based on tithi (Caturthī across both pakṣas), reflecting practical Jyotiṣa-based timing for rites—an applied aspect of Vedic timekeeping used in vrata and pūjā.