Matsya Purana — Pratiśukra Rite and the Worship of Śukra
यावच्छुक्रस्य न हृता पूजा सा माल्यकैः शुभैः वटकैः पूरिकाभिश्च गोधूमैश्चणकैरपि तावदन्नं न चाश्नीयात् त्रिभिः कामार्थसिद्धये //
yāvacchukrasya na hṛtā pūjā sā mālyakaiḥ śubhaiḥ vaṭakaiḥ pūrikābhiśca godhūmaiścaṇakairapi tāvadannaṃ na cāśnīyāt tribhiḥ kāmārthasiddhaye //
So long as the worship of Śukra (Venus) has not been duly performed—with auspicious garlands, with vātaka-cakes and pūrikā pastries, and also with wheat and chickpeas—one should not eat food. (This observance is to be maintained) for three (days/occasions), for the attainment of desire and wealth.
This verse is not about pralaya; it prescribes a ritual discipline for Śukra worship, emphasizing purity and restraint (not eating) until the rite is completed.
It frames a householder-style observance: self-control, correct offerings, and fasting until worship is completed—presented as a dharmic method to seek kāma (desired outcomes) and artha (prosperity) without neglecting ritual order.
Ritually, it specifies the upacāras (offerings) for Śukra—garlands and specific foods (vātaka, pūrikā, wheat, chickpeas)—and mandates abstaining from eating until the pūjā is done, maintained for “three” units (commonly read as three days/observances) to secure results.