Charak Samhita
अव्यक्ताद्व्यक्ततां याति व्यक्तादव्यक्ततां पुनः। रजस्तमोभ्यामाविष्टश्चक्रवत् परिवर्तते ॥६८॥
The universe accompanied with rajas and tamas cycles between the unmanifested and the manifested stages.
english translation
avyaktAdvyaktatAM yAti vyaktAdavyaktatAM punaH। rajastamobhyAmAviSTazcakravat parivartate ॥68॥
hk transliteration by Sanscript