अथ सप्तविधस्य वाचि सप्तविध्ं सामोपासीत यत्किंच वाचो हुमिति स हिंकारो यत्प्रेति स प्रस्तावो यदेति स आदिः ॥ २.८.१ ॥
In plain words
Now for the sevenfold. Let a man worship the sevenfold Sāman in speech. Whatever in speech is huṃ, that is the hiṃkāra; whatever is pra, that is the prastāva; whatever is ā, that is the ādi;