Kathakagrihyasutra 31.2.4

31.2.4

triṣṭup | he pitaraḥ, ādityā rudrā vasavaśca me mama sadasi bhavāḥ atra yajñabhūmau sthitāḥ sahacarā mitrāṇi teṣāmādityādīnāṃ sakhye vartamānā yūyaṃ svadhayā madadhvaṃ taiḥ saha, svadhāṃ vahadhvamiti svadhāṃ bhajadhvam | kīdṛśīm | amṛtasyāmaraṇadharmasya yoniṃ kāraṇam | he pitaraḥ atra paraloke yā yogyā svadhā, tāṃ bhajadhvaṃ sevadhvam | pitṝnuddiśya yattyajyate annaṃ, sā svadhetyucyate || somaḥ pitṛmāndevatā, agniḥ kavyavāhanaśca | tadyāgena hi pitṛtṛptiḥ śrūyate 'tatsomaṃ pitṛmantaṃ yajanti somapāstatpitṝnyajanti dve vā agnestanvā havyavāhanyā devebhyo havyaṃ vahati kavyavāhanyā pitṛbhyaḥ ||' iti | svadhānama iti saṃpradānārthīyī nipātasamudāyaḥ | dvāvapica svadhānamaḥśabdāvannanāmasu paṭhyete | athavā namo'nnaṃ haviḥ svadhā saṃpadyatāmagnaye deyamityartho'numantavyaḥ ||