abstract:The Upanishad () is one of the older, "primary" (mukhya) Upanishads. It is contained within the Shatapatha Brahmana, and its status as an independent Upanishad may be considered a secondary extraction of a portion of the Brahmana text. This makes it one of the oldest texts of the Upanishad corpus. It is largely the oldest Upanishad, excluding some parts which were composed after the Chandogya.Olivelle, Patrick . Upaniṣads. Oxford University Press, 1998, pages 3–4 and the largely neglected Jaiminiya Upanisad Brahmana.Fujii, M. 1997, “On the Formation and Transmission of the Jaiminīya-Upaniṣad-Brāhmaṇa”, Inside the Texts, Beyond the Texts: New Approaches to the Study of the Vedas, ed. M. Witzel, [Harvard Oriental Series, Opera Minora, 2], Cambridge, 89–102 It is associated with the Shukla Yajurveda. It figures as number 10 in the Muktika canon of 108 Upanishads and was notably commented upon by Adi Shankara.