Yoga Sūtra Chapter Two verse 52

ततः क्षीयते प्रकाशावरणम् ॥५२॥

tataḥ kṣīyate prakāśa-āvaraṇam ||52||

From that, the covering of the light dissolves.

tatas - hencekṣīyate - dissolvesprakāśa - brightnessāvaraṇa - covering