Manava Dharmashastra 3.184.4

3.184.4

ye'pyāhuḥ- "ajñātapitrādināmakā ye teṣāmetaiḥ śabdaiḥ śrāddhādi codyate 'somapānāhvayāmi somapebhyaḥ svadheti" - etadapi na samyak | uktaṃ hi "nāmānyavidvāṃstataḥ pitāmahaprapitāmaheti"| yadi cārthavādatayā na prakṛtaśeṣatvenārthavattā labhyeta, tata eva kalpā āśriyeran | na tvekavākyatayā'nvaye saṃbhavati vākyabhedakalpanenārtho nyāyyaḥ |

Some people have held that—“the offerings enjoined as to be made with such expressions as ‘I am inviting the Somapās,’ ‘may this reach the Somapās,’ and the like, are by those persons, the names of whose father and other ancestors are unknown.”

This also is not right; as it has been distinctly laid down that ‘one not knowing the names of one’s ancestors should make the offerings simply with the words to the father, to the grandfather, and so forth.’

Further, there might be some justification for having recourse to the several explanations of this verse, only if it were absolutely impossible to construe it as serving the purposes of a commendatory description supplementary to the foregoing injunction. But so long as it is possible to construe the verse along with what has gone before, it cannot be right to take it as an isolated assertion by itself.—(194)