ŚBM, 1, 8, 2, 10.2 tadvai kaniṣṭhaṃ chandaḥ sadgāyatrī prathamā chandasāṃ yujyate tad u tadvīryeṇaiva yacchyeno bhūtvā divaḥ somamāharat tad ayathāyatham manyante yatkaniṣṭhaṃ chandaḥ sadgāyatrī prathamā chandasāṃ yujyate 'thātra yathāyathaṃ devāśchandāṃsyakalpayannanuyājeṣu net pāpavasyasam asad iti //

ŚBM, 6, 8, 2, 8.2 etad vā etad ayathāyathaṃ karoti /