Charak Samhita
अव्यक्तमात्मा क्षेत्रज्ञः शाश्वतो विभुरव्ययः। तस्माद्यदन्यत्तद्व्यक्तं, वक्ष्यते चापरं द्वयम् ॥६१॥
The absolute soul is unmanifested, knower of creation, eternal, universal and indestructible. The manifested creation (Purusha) is, of course, otherwise.
english translation
avyaktamAtmA kSetrajJaH zAzvato vibhuravyayaH। tasmAdyadanyattadvyaktaM, vakSyate cAparaM dvayam ॥61॥
hk transliteration by Sanscript