Purva-Mimamsa in its Sources c28.s2.2

c28.s2.2

As an instance of (1) *Direct Assertion*, we have the following;—There are certain *Mantra-texts* which are held to be sacred to certain Deities; one such Mantra is named ‘*Aindrī*’; in regard to this there is the *Direct Assertion*, in *Vajasanēya-Samhitā* (12—66), to the effect that ‘*With the Aindrī one should worship the Gārhapatya Fire*’;—in regard to this *Aindrī-Mantra*, there is a doubt, as to whether it should be used in the worshipping of *Indra*,—as indicated by its name '*Aindri*'—or in that of the *Gārhapatya Fire*,—as declared in the Direct Assertion of the Veda; the conclusion is that it should be used in the worshipping of the *Gārhapatya Fire*; and thus the Mantra becomes 'auxiliary' to the act of worshipping the said Fire. (Mīmā-Sū. 3.2.3-4).