Ashvalayanagrihyasutra 1.3-10

1.3-10

tad eṣā abhiyajña gāthā gīyate./.pāka yajñānt samāsādya eka ājyān eka barhiṣaḥ./.eka sviṣṭakṛtaḥ kuryān nānā api sati daivata iti./

With reference thereto the following sacrificial stanza is sung:
'He who has to perform (different) Pâkayagñas, should offer them with the same Âgya, the same Barhis, and the same Svishtakrit, even if the deity (of those sacrifices) is not the same.'