Matsya Purana — Origin of Soma
*ऋषय ऊचुः सोमः पितॄणामधिपः कथं शास्त्रविशारद तद्वंश्या ये च राजानो बभूवुः कीर्तिवर्धनाः //
*ṛṣaya ūcuḥ somaḥ pitṝṇāmadhipaḥ kathaṃ śāstraviśārada tadvaṃśyā ye ca rājāno babhūvuḥ kīrtivardhanāḥ //
The sages said: “O you who are learned in the scriptures, how did Soma become the lord of the Pitṛs (ancestral beings)? And which kings were born in his lineage—those who increased fame and renown?”
This verse does not discuss Pralaya; it opens a genealogical inquiry about Soma’s status among the Pitṛs and the succession of renowned kings in his lineage.
By asking about “kīrtivardhanāḥ” kings, the verse frames kingship in terms of upholding actions that enhance lasting fame—typically achieved through dharma, protection of subjects, patronage of rites, and lineage continuity.
The ritual implication is indirect: Soma’s lordship over the Pitṛs points toward the Pitṛ-yajña/śrāddha tradition (ancestral rites), though no Vāstu or temple-building rule is stated in this verse.