Nadabindu Upanishad Verse 30
Sanskrit
ब्रह्मप्रणवसन्धानं नादो ज्योतिर्मयः शिवः । स्वयमाविर्भवेदात्मा मेघापायेंऽशुमानिव ॥ ३०॥
K. Narayanasvami Aiyar's Translation
Then as prārabdha has, in course of time, worn out, he who is the sound resulting from the union of Praṇava with Brahman who is the absolute effulgence itself, and who is the bestower of all good, shines himself like the sun at the dispersion of the clouds.
Reference: Nadabindu Upanishad

Muni's Play