Jaiminīya (Talavakāra) Brāhmaṇa 1.76

1.76

tadāhuḥ adhvaryo kiṃ stutaṃ stotraṃ hotā prātaranuvākenānvaśaṃsīditi
akarma vayaṃ tadyadasmākaṃ karma ityāha hotāraṃ pṛcchata iti
hotaḥ kiṃ stutaṃ stotraṃ prātaranuvākenānvaśaṃsīḥ iti
akarma vayaṃ tadyadasmākaṃ karma ityāha udgātāraṃ pṛcchata iti
udgātaḥ kiṃ stutaṃ stotraṃ hotā prātaranuvākenānvaśaṃsīditi
akarma vayaṃ tadyadasmākaṃ karma iti brūyādagāsiṣma yadatra geyamiti
taṃ yadi brūyuḥ tamāṃsi vā agāsīrna jyotīṃṣi agāsiṣaṃ yuṣmāneva tamasā
pāpmanā vidhyāni iti
tamasā caivaināṃstatpāpmanā ca vidhyati

Regarding this, they say: ‘O Adhvaryu, what chant that was chanted did the Hotṛ recite after with the morning litany?’ He should say: ‘We have done that which was our work; ask the Hotṛ.’ ‘O Hotṛ, what chant that was chanted did you recite after with the morning litany?’ He should say: ‘We have done that which was our work; ask the Udgātṛ.’ ‘O Udgātṛ, what chant that was chanted did the Hotṛ recite after with the morning litany?’ He should say: ‘We have done that which was our work; we have sung what was to be sung here.’ If they should say to him: ‘You have sung darknesses, not lights,’ [he should say]: ‘I have sung so that I may strike you with darkness and with evil!’ And he indeed strikes them with darkness and with evil.