Kaivalya Upanishad
The Kaivalya Upanishad (Sanskrit: कैवल्य उपनिषद्) is a late 1st millennium BCE Sanskrit text and one of the minor Upanishads of Hinduism. It is classified as a Shaiva Upanishad, and survives into modern times in two versions, one attached to the Krishna Yajurveda and other attached to the Atharvaveda.