One may mix together the libation offerings of rams with those of bulls, the libation offerings of lambs with those of lambs, those of an individual with those of the community, [and] those of today with those of yesterday. But one may not mix together the libation offerings of lambs with those of bulls and rams. If he combined [the ingredients of] each of them separately and they [then] mixed together, they are valid; if before they were combined, they are invalid. The lamb which comes with the omer-offering, although [the size of] its minchah-offering is doubled, its libations are not doubled.