Agniveshyagrihyasutra 3.1.3.17

3.1.3.17

eṣa te prapitāmaha piturmadhumām̐ ūrmiḥ sarasvān yāvānādityaśca dyauśca tāvatyasya mātrā tāvānasya mahimā tāvantamenaṃ bhūtaṃ dadāmi yathādityo 'kṣito 'nupadastaḥ evaṃ me prapitāmahāya pitre 'kṣito 'nupadastaḥ svadhā bhavatāṃ tyam̐ svadhāmakṣitaṃ taiḥ sahopajīvāsau sāmāni te mahimā iti \

“This is your sweet, flowing wave, O great-grandfather, father! As great as are the sun and heaven, so great is its measure, so great is its greatness. As vast as it has become, so vast do I give it. Just as the sun is unexhausted and unfailing, so may this be unexhausted and unfailing svadhā for my great-grandfather, the father! O so-and-so, live upon that unexhausted svadhā together with them! The Sāman chants are your greatness!”—thus.