Vijnana Bhairava Tantra
ज्ञानप्रकाशकं सर्वं सर्वेणात्मा प्रकाशकः । एकमिकस्वभावत्वात्ज्ञानं ज्ञेयं विभाव्यते ॥ १३७ ॥
Knowledge reveals all and the self of all is the revealer (knower). One should contemplate on the knowledge and the knower as being one and the same.
english translation