Madhvaon Brahma Sūtra 3.2.28
Dvaita Vedānta
Numbered 3.2.29 in this text
Sūtra
प्रकाशाश्रयवद्वा तेजस्वात्
prakāśāśrayavadvā tejasvāt
Sūtra translation
Like that (the truu) which is the abode of light as well as light, Brahman’s both the quality and, the qualified (ilustre and the lustrous), on account of His being of lustrous character.
Or the illustration may be taken thus: just as the sun is both lustre and the lustrous, so is Brahman; for Brahman (like the sun) is essentially of the luminous nature.