Matsya Purana — The Greatness and Procedure of the Aṅgāra
मन्त्रेणानेन दत्त्वार्घ्यं रक्तचन्दनवारिणा ततो ऽर्चयेद्विप्रवरं रक्तमाल्याम्बरादिभिः //
mantreṇānena dattvārghyaṃ raktacandanavāriṇā tato 'rcayedvipravaraṃ raktamālyāmbarādibhiḥ //
Having offered the arghya with this mantra, using water scented with red sandalwood, one should then worship the foremost Brahmana with red garlands, red garments, and similar offerings.
This verse is not about pralaya; it focuses on ritual protocol—offering arghya with mantra and honoring a Brahmana with prescribed items.
It reinforces dharma through respectful hospitality and worship: a householder (and by extension a king) should honor learned Brahmanas with proper offerings, using sanctified substances and orderly procedure.
Ritually, it specifies arghya made with red sandalwood-water and the use of red-colored offerings (garlands, garments) for worship—details important for correct puja performance rather than temple architecture.