अग्निनिचयः (Agninichaya) / The Accumulation of Sacred Fire & the Classification of Pitṛs by Time-Order
तस्मात्स्मृतः प्रजानां वै वत्सरः प्रपितामहः / स्थानेषु स्थानिनो ह्येते स्थानात्मानः प्रकीर्त्तिताः
tasmātsmṛtaḥ prajānāṃ vai vatsaraḥ prapitāmahaḥ / sthāneṣu sthānino hyete sthānātmānaḥ prakīrttitāḥ
Therefore, for all beings, Vatsara is remembered as the Prapitāmaha, the great forefather. These abide in their respective stations and are proclaimed as the very souls of those abodes.