आगमे विश्वासटिप्पन्यः

One of the two most important texts in the
Brahmana branch of sacred Vedic literature, along with the Aiteraya Brahmana.
The Brahmanas were primarily manuals
describing the correct performance of
Vedic ritual sacrifices. Each Brahmana was
in theory connected with one of the
Vedas, which gave them Vedic authority,
but in fact they were quite different from
the Vedas in scope and content. According
to tradition, the Shatapatha Brahmana
was connected with the “white” recension
of the Yajur Veda, a variant form of the text
in which the explanatory notes connected
with the Vedic mantras have been collected
into a separate appendix. This is in
626
Sharva
contrast with the “Black” Yajur Veda, in
which these notes have been incorporated
into the body of the text itself. Aside from
giving instruction on the practice of rituals,
the Shatapatha Brahmana includes a wide
variety of texts, one of which is the Isha
Upanishad. The upanishad’s presence in a
Brahmana text clearly shows that there
was considerable overlap in the times of
composition of various Vedic literary
styles, rather than clear-cut “periods.”