Buddhacarita by Ven Asvaghosa - Ancient Buddhist Texts

Buddha-carita, or Life of Buddha - 145
16. ‘O best of hearers, hear this our firmly-settled theory, how our
mortal existence arises and how it revolves.
17. “The evolvent" and "the evolute," birth, old age, and death, –
know that this has been called the reality by us; do thou receive our
words, O thou who art stedfast in thy nature.
18. ‘But know, O thou who art deep in the search into the nature of
things, that the five elements, egoism, intellect, and "the
unmanifested" are the "evolvents;"
19. ‘But know that the "evolutes" consist of intellect, external objects,
the senses, and the hands, feet, voice, anus, and generative organ, and
also the mind.
20. ‘There is also a something which bears the name kṣetrajña, from
its knowledge of this "field" (kṣetra or the body); and those who
investigate the soul call the soul kṣetrajña.
21. ‘Kapila with his disciple became the illuminated, – such is the
tradition; and he, as the illuminated, with his son is now called here
Prajāpati.
22. ‘That which is born and grows old and is bound and dies, – is to
be known as "the manifested," and "the unmanifested" is to be
distinguished by its contrariety.