Matsya Purana — The Terror of Tripura and the Gods’ Hymn to Śiva
अग्निवर्णमजं देवम् अग्निकुण्डनिभेक्षणम् अग्न्यादित्यसहस्राभम् अग्निवर्णविभूषितम् //
agnivarṇamajaṃ devam agnikuṇḍanibhekṣaṇam agnyādityasahasrābham agnivarṇavibhūṣitam //
He should be depicted as the unborn divine Lord, fiery in hue—his gaze like a blazing fire-pit—radiant as a thousand fires and suns, and adorned with the splendor of flame-like color.
It does not describe Pralaya directly; it emphasizes divine, uncreated (aja) radiance—an iconographic way of expressing transcendence beyond birth and dissolution.
Indirectly, it supports dharma through correct worship: kings and householders are expected to sponsor and maintain proper consecrated images and rituals, and accurate iconography is treated as part of righteous religious patronage.
It gives a pratima-lakṣaṇa cue for image-making: the deity’s complexion, gaze, and overall brilliance should be rendered as fire-like and sun-like, guiding sculptors/painters and informing consecration aesthetics in temple practice.