apaḥ bhi māsaḥ chandasi .

apaḥ bhi iti atra māsaḥ chandasi upasaṅkhyānam kartavyam : mā adbhiḥ iṣṭvā indraḥ vṛtrahā .

atyalpam idam ucyate .

svavassvatavasoḥ māsaḥ uṣasaḥ ca taḥ iṣyate

: svavadbhiḥ , svatavadbhiḥ , samuṣadbhiḥ ajāyathāḥ , mā adbhiḥ iṣṭvā indraḥ vṛtrahā