Hiranyakeshigrihyasutra 2.5.15.7

2.5.15.7

śrapayitvābhighāryodvāsya prasavyaṃ pariṣicyaudumbaramidhmamabhyādhāyaudumbaryā darvyopastīrṇābhighāritāṃ vapāṃ juhoti \ vaha vapāṃ jātavedaḥ pitṛbhyo yatraitānvettha nihitānparāke \ medasaḥ kūlyā upa tānkṣarantu satyā eṣāmāśiṣaḥ santu kāmaiḥ \ svadhā namaḥ \ iti \7\

After he has roasted them, and has sprinkled Âgya over them, and has taken them from the fire, he sprinkles water round (the fire) from right to left, puts a piece of Udumbara wood on (the fire), and sacrifices with a Darvi spoon of Udumbara wood the omentum, spreading under and sprinkling over it (Âgya), with (the verse), 'Carry the omentum, Gâtavedas, to the Fathers, where thou knowest them resting afar. May streams of fat flow to them; may their wishes with all their desires be fulfilled. Svadhâ! Adoration!'