Ṣaḍviṃśa Brāhmaṇa ("26th" book) 2.7

2.7

tatra subrahmaṇyāśabdasya mantranāmadheyatve subrahmaṇyā kim ṛk kiṃ vā yajuḥ uta sāma | vicārārthaḥ plutaḥ | iti yadyāhuḥ tarhi sarvameva ṛgyajuḥsāmāni sarvāṇyapi subrahmaṇyetyuttaram | tasya vivaraṇam | ṛca iva yathā ṛgrūpasya mantrasya strīliṅgaḥ ṛkśabdo nāmadheyama, tathāsyāḥ subrahmaṇyasya mantrasya, subrahmaṇyeti strīliṅgaṃ nāmadheyam | tasmālliṅgasāmyāt ṛk subrahmaṇyā | ayaṃ subrahmaṇyāśabdavācyo mantro nigadabhūta eva bhavati khalu | nigado nāma yajurviśeṣaḥ tasmādyajuḥ | yathā yasmāt sāmakāriṇaḥ sāmagāḥ anyaiḥ sāmabhiḥ saha kurvanti evaṃ paṭhanti tasmāt sāma | taiḥ paṭhyamānatvāt | tasmāt sarvameva ṛgyajuḥsāmeti brūyāt | ṛṅnigadasāmātmakatvena mantraviṣaye'pi strīpuṃnapuṃsakatvamityabhiprāyaḥ |
evaṃ subrahmaṇyāhvānaṃ darśayitvā tato yat kartavyaṃ tadāha—