Matsya Purana — Devayānī–Śarmiṣṭhā Dialogue: Yayāti’s Transgression
ततः काले च कस्मिंश्चिद् देवयानी शुचिस्मिता ययातिसहिता राजञ् जगाम हरितं वनम् //
tataḥ kāle ca kasmiṃścid devayānī śucismitā yayātisahitā rājañ jagāma haritaṃ vanam //
Then, at a certain time, Devayānī—smiling with pure grace—together with Yayāti, O King, went to the green forest.
Nothing directly—this verse is part of a dynastic narrative (Yayāti–Devayānī) and describes a journey to the forest, not cosmology or pralaya.
Indirectly, it frames royal life within dharmic storytelling: even kings and queens move through phases of life (courtly life, travel, forest sojourn), a common Purāṇic motif used to teach restraint, relationship ethics, and life-stage transitions.
No explicit vāstu, temple-building, or ritual procedure is stated; the only setting detail is the 'green forest,' serving as narrative context rather than technical instruction.