Matsya Purana — The Burning of Tripura and Rudra’s Victory
शरतेजःपरीतानि पुराणि द्विजपुंगवाः दुष्पुत्रदोषाद्दह्यन्ते कुलान्यूर्ध्वं यथा तथा //
śaratejaḥparītāni purāṇi dvijapuṃgavāḥ duṣputradoṣāddahyante kulānyūrdhvaṃ yathā tathā //
O best of the twice-born, ancient lineages—encircled by the scorching heat of autumn—are likewise burned upward through the generations because of the fault of an evil son.
It does not describe cosmic Pralaya; it uses a seasonal fire-heat simile to depict moral “destruction” of a family line caused by a duṣputra (wicked son).
It warns that raising or tolerating an unrighteous son damages the kula across generations; for a householder it stresses disciplined upbringing and dharmic conduct, and for a king it implies safeguarding social order by encouraging virtue and restraining harmful behavior that ruins families.
No Vāstu or temple-architecture rule is stated; the verse is an ethical instruction employing a natural metaphor (autumn heat) to emphasize the far-reaching consequences of moral failure in progeny.