Yoga Sutras of Patanjali 4.32

ततः कृतार्थानां परिणामक्रमसमाप्तिर्गुणानाम् ॥

tatah kritarthanam parinama-krama-samaptir gunanam

Then the gunas, having fulfilled their purpose, cease their sequence of transformations.

तब कृतार्थ (प्रयोजन-पूर्ण) हो जाने पर गुणों का परिणाम-क्रम समाप्त हो जाता है।