Brihadaranyaka Upanishad 2.5.5

2.5.5

ayamādityaḥ sarveṣāṃ bhūtānāṃ madhvasyādityasya sarvāṇi bhūtāni madhu yaścāyamasminnāditye tejomayo'mṛtamayaḥpuruṣo yaścāyamadhyātmaṃ cākṣuṣastejomayo'mṛtamayaḥ puruṣo'yameva sa yo'yamātmedamamṛtamidaṃ brahmedam̐ sarvam

This sun is the honey of all beings, and all beings are the honey of this sun. Likewise this bright, immortal person in this sun, and that bright, immortal person existing as the eye in the body (both are madhu). He indeed is the same as that Self, that Immortal, that Brahman, that All.