Matsya Purana — The Legend of Acchodā: Pitṛloka
इमाव् उत्पाद्य तनयौ क्षेत्रजावस्य धीमतः प्रौष्ठपद्यष्टकारूपा पितृलोके भविष्यसि //
imāv utpādya tanayau kṣetrajāvasya dhīmataḥ prauṣṭhapadyaṣṭakārūpā pitṛloke bhaviṣyasi //
Having brought forth these two sons for the wise man by kṣetraja-procreation, you shall dwell in the world of the Fathers (Pitṛloka), assuming the form of Aṣṭakā in the month of Prauṣṭhapada.
This verse is not about Pralaya; it focuses on dharmic lineage-continuation (kṣetraja offspring) and the resulting post-death attainment of Pitṛloka connected with Aṣṭakā observances.
It reinforces the householder-ideal of sustaining lineage and fulfilling ancestral obligations; producing legitimate progeny (including the appointed kṣetraja model in specific dharmic contexts) is linked to merit and the Pitṛloka destination.
The ritual marker is Aṣṭakā—an ancestral-rite observance—specifically tied to Prauṣṭhapada; the verse implies a śrāddha-centered calendrical identity rather than any Vāstu/temple-building rule.