Mimamsasutra 42.2.25-2

42.2.25-2

saptadaśādhikaraṇamāracayati-
dvisāmake dvayordharmasāṃkaryaṃ vā vyavasthitiḥ |
pṛṣṭhaikyātsaṃkaro maivaṃ dharmāṇāṃ sāmagatvataḥ ||

He sets forth the seventeenth topical section:
In a rite with two sāmans, is there intermingling of the ritual details of the two, or a distribution?
There would be confusion because of the oneness of the Pṛṣṭha; not so, because the ritual details pertain to the sāmans.