Atharvashiras, Brihajjabala, Kaivalya upanishads in Shivarahasya Purana

[V Subrahmanian]

The above is the very clear annotation of the Atharva Shiras Upanishad.

https://archive.org/details/eGcz_shiva-rahasya-maha-itihasa-maheshwar-part-1-jangamwadi-math-collection/page/n212/mode/1up?view=theater

2. Reference to kaivalya and Brihajjabala Upanishads for Shiva in the Siva rahasya purana:

All these Upanishads are listed in the Muktikopanishad collection of 108 Upanishads.  While the Atharva shiras and Kaivalya are commented upon by the 13 - 14 Century CE Advaita Acharya/s, the Brihajjabala along with all the others have been commented upon by Upanishad brahma yogin of the 17th Century.   These Upanishads, along with the Shvetashwatara, also stand annotated in the Shiva Purana.

regards

subbu