Garudapurana 1.219.6

1.219.6

tataḥ prapitāmahīprabhṛtīnāmanujñāpanamāsanadānaṃ gandhādidānañca acchidrāvadhāraṇavācanam /
itthaṃ pitāmahyāḥ mātuḥ /
tataḥ prapitāmahādīnāṃ anujñāpanam /
āsanamāvāhanaṅgandhādidānaṃ-vṛddhapramātāmahādīnāmanujñāpanādikaraṇam /
oṃ vasusatyasaṃjñakebhyo devebhya etadannaṃ saghṛtaṃ sapānīyaṃ savyañjanaṃ savadaraṃ sadadhi pratiṣiddhavarjitaṃ nama iti annasaṅkalpanam /
oṃ amukagotre ! matpitāmahamukadevi nāndīmukhi ! etadannaṃ sabadaraṃ sadadhi namaḥ /
evaṃ mātāmahaprabhātāmahebhyaḥ //

Then, seeking permission of the great-grandmothers and others, offering a seat, offering perfumes and the like, and reciting the confirmation of flawlessness; / likewise for the grandmother and the mother. / Then, seeking permission of the great-grandfathers and others; / offering a seat, invocation, offering of perfumes and so on, and doing the seeking of permission and so forth for the elder maternal great-grandfathers and others. / "Om, to the deities named Vasu and Satya, this food with clarified butter, water, condiments, jujubes, and curds, free from prohibited items, obeisance"—this is the determination of the food. / "Om, of such-and-such gotra, O my grandmother of such-and-such name, of the Nāndīmukha class, this food with jujubes and curds, obeisance." / Likewise for the maternal grandfather and maternal great-grandfathers.