Matsya Purana — Vrata-Ṣaṣṭhī: The Sixty Sacred Vows
पुष्यादौ यस्त्रयोदश्यां कृत्वा नक्तं मधौ पुनः अशोकं काञ्चनं दद्याद् इक्षुयुक्तं दशाङ्गुलम् //
puṣyādau yastrayodaśyāṃ kṛtvā naktaṃ madhau punaḥ aśokaṃ kāñcanaṃ dadyād ikṣuyuktaṃ daśāṅgulam //
If, beginning with the auspicious time of Puṣya, a person observes the thirteenth lunar day (trayodaśī) by taking only a night-meal (nakta), then again in the spring month of Madhu he should give as a gift a golden aśoka sprig (or tree), together with sugarcane measuring ten aṅgulas.
This verse does not discuss Pralaya; it focuses on dharmic observance—fasting on Trayodaśī and giving a specific seasonal gift—showing how merit is cultivated through vrata and dāna rather than cosmology.
It gives a householder-style discipline: observe naktavrata (eating only at night) on Trayodaśī and perform dāna in Madhu (spring). Such regulated charity and self-restraint are presented in the Purāṇas as core duties supporting personal purity and social welfare.
Ritually, it prescribes a nakṣatra/season-linked donation: a golden aśoka (symbol of auspiciousness and flourishing) accompanied by measured sugarcane (ikṣu), indicating that precise items and measures matter in Matsya Purāṇa’s dāna-vidhi.