Matsya Purana — Bhīma-Dvādaśī
युक्तानौदुम्बरैः पात्रैः पञ्चरत्नसमन्वितान् चतुर्भिर्बह्वृचैर्होमस् तत्र कार्य उदङ्मुखैः //
yuktānaudumbaraiḥ pātraiḥ pañcaratnasamanvitān caturbhirbahvṛcairhomas tatra kārya udaṅmukhaiḥ //
There, the homa should be performed facing north, using properly arranged udumbara-wood vessels furnished with the five gems, and carried out with four Bahvṛca (Ṛgvedic) priests.
This verse does not describe Pralaya directly; it preserves ritual order during ordinary sacred rites, emphasizing correct materials, officiants, and direction—features Purāṇas uphold as part of cosmic harmony (ṛta).
It frames dharmic duty as precise ritual performance: a householder (or a king sponsoring rites) should arrange proper vessels, qualified Ṛgvedic priests, and correct orientation, thereby sustaining merit (puṇya) and social-religious order.
Ritually, it mandates north-facing homa (udaṅmukha), use of udumbara-wood vessels, and pañcaratna inclusion—details that guide altar/ritual layout and the selection of sanctioned materials in Purāṇic practice.