Charak Samhita
तस्माज्ज्ञः प्रकृतिश्चात्मा द्रष्टा कारणमेव च। सर्वमेतद्भरद्वाज निर्णीतं जहि संशयम् ॥२५॥
The soul is the knower, the nature, the viewer and the cause. This is the conclusion of everything, Bharadvāja. Hence, be doubt-free.
english translation
tasmAjjJaH prakRtizcAtmA draSTA kAraNameva ca। sarvametadbharadvAja nirNItaM jahi saMzayam ॥25॥
hk transliteration by Sanscript