Matsya Purana — Śrāddha Procedure: Types
विप्राणां क्षालयेत् पादाव् अभिनन्द्य पुनः पुनः आसनेषूपकॢप्तेषु दर्भवत्सु विधानवत् //
viprāṇāṃ kṣālayet pādāv abhinandya punaḥ punaḥ āsaneṣūpakḷpteṣu darbhavatsu vidhānavat //
بعد أن يحيّي البراهمة باحترام مرارًا وتكرارًا، ينبغي أن يغسل أقدامهم؛ ثم يُجلِسهم على المقاعد المُعَدّة المزوّدة بعشب الدربها (darbha) وفقًا للطقس المقرر.
This verse does not address pralaya or cosmology; it focuses on dharma—proper hospitality and ritual etiquette toward Brahmins.
It prescribes ācamana-style hospitality: repeatedly honoring Brahmins, washing their feet, and offering a proper seat—core duties of a householder (and by extension a righteous king) in maintaining social and ritual order.
The ritual detail is the use of prepared seats with darbha (kuśa) grass, a standard purity aid in Vedic-Puranic rites, indicating that seating arrangements themselves are part of correct procedure (vidhāna).