Manava Dharmashastra 1.77

1.77

virociṣṇu bhāsvaditi samānārthena śabdadvayena svaparaprakāśatā pratipādyate | svayaṃ dīptimatparaṃ ca bhāsayati |

After wind, from out of the same Evolvent, emanates the bright and radiant light, the dispeller of darkness; it is said to be endowed with the quality of colour.—(77)

Medhātithi’s commentary (manubhāṣya):
The two words ‘bright’ and ‘radiant,’ which are synonymous, have been used with a view to indicate that Light is itself bright, and it also illumines other things; that it is itself endowed with brilliance and it makes other things also brilliant.—(77)