KAIVALYA UPANISHAD · 18

त्रिषु धामसु यद्भोग्यं भोक्ता भोगश्च यद्भवेत् ।
तेभ्यो विलक्षणः साक्षी चिन्मात्रोऽहं सदाशिवः ॥ १८॥

triṣu dhāmasu yadbhogyaṃ bhoktā bhogaśca yadbhavet ।
tebhyo vilakṣaṇaḥ sākṣī cinmātro’haṃ sadāśivaḥ ॥ 18॥

I am that Sadāśiva, (or the eternal happiness) who is other than the enjoyer, the enjoyed, and the enjoyment in the three seats (or bodies), and who is witness and Chinmātra.

K. Narayanasvami Aiyar · Thirty Minor Upanishads (1914), pp. 31–33