Amāvasyā-Pitṛtarpaṇa: Purūravas and the Soma-Based Ancestral Offering (अमावस्या-पितृतर्पण / सोमतर्पण-विधि)
यज्वानो ये तु सामेन सोमवन्तस्तु ते स्मृताः / ये यज्वानो हविर्यज्ञे ते वै बर्हिषदः स्मृताः
yajvāno ye tu sāmena somavantastu te smṛtāḥ / ye yajvāno haviryajñe te vai barhiṣadaḥ smṛtāḥ
Those sacrificers who perform the rite with the Sāman chants are remembered as ‘Somavant’; and those sacrificers who perform the havis-offering sacrifice are remembered as the ‘Barhiṣad’.