Aitareyabrahmana 6.16

6.16

athāha:
yan nārāśaṃsaṃ vai tṛṭīyasavanam,
atha kasmād achāvāko 'ntataḥ śilpeṣv anārāśaṃsīḥ śaṃsatīti
vikṛtir vai nārāśaṃsaṃ.
kim iva ca vai kim iva ca reto vikriyate,
tat tada vikṛtam prajātam bhavaty.
athaitan mṛdv iva chandaḥ śithiran yan nārāśaṃsam.
athaiṣo 'ntyo yad achāvākas:
tad dṛḷhatāyai dṛḷhe pratiṣṭhāsyāma iti
tasmād achāvāko 'ntataḥ śilpeṣv anārāśaṃsiḥ śaṃsati:
dṛḷhatāyai dṛḷhe pratiṣṭhāsyāma dṛḷhe pratiṣṭhāsyāma iti

vi. 16 (xxviii. 8). Further he says ‘Seeing that the third pressing is connected with the Nārāçaṅsa, then why does the Achāvāka at the end recite in the Çilpas verses without reference to the Nārāçaṅsa. The Nārāçaṅsa (hymn) is a development; some seed is developed as it were; this is already developed and so propagated. Again the Nārāçaṅsa hymn is soft and slipping; but the Achāvāka is the last; (they think) ‘We shall establish it in something firm for the sake of firmness’. Therefore the Achāvāka at the end in the Çilpas recites (verses) without reference to the Nārāçaṅsa (thinking) ‘We shall establish it in something firm, for the sake of firmness’.