Bruhat Jaabhala Upanishad

This Hindu text is attached to the Atharvaveda, and is one of 14 Shaiva Upanishads. It describes the process of producing Vibhuti (Bhasma), or sacred ash, methods of using it for tilaka Tripundra on various parts of the body, and its meaning in Shaivism. The text also mentions Rudraksha as prayer beads.