Narada Purana — Purva Bhaga, Shloka 17
The Narration of the Trayodaśī Vow Observed Throughout the Twelve Months
प्रतिमासं ततः पश्चात्त्रयोदश्यां सिते दले । एवमेव व्रतं कार्यं वर्षांते गामलंकृताम् ॥ १७ ॥
pratimāsaṃ tataḥ paścāttrayodaśyāṃ site dale | evameva vrataṃ kāryaṃ varṣāṃte gāmalaṃkṛtām || 17 ||
此后，每个月在白分的第十三日（Trayodaśī）都应如法同样修持此誓；到一年圆满之时，当以一头装饰庄严的母牛作为结愿之施。
Narada
Vrata: Kāmadeva-vrata (monthly continuation)
Primary Rasa: shanta
Secondary Rasa: bhakti
FAQs
It teaches disciplined continuity in vrata-practice—observing the vow monthly on a specific tithi—and concludes with dāna (gift-giving), indicating that devotion and self-restraint should mature into generosity.
By prescribing a regular sacred observance tied to the lunar calendar and ending with an offering (adorned cow), it frames bhakti as steady practice (niyama) combined with charitable dedication of one’s merit.
The verse uses calendrical ritual timing—Trayodaśī in the bright fortnight—reflecting Jyotiṣa-style tithi reckoning applied to dharma and vrata performance.