Charak Samhita
न चात्मा सत्स्विन्द्रियेषु ज्ञः, असत्सु वा भवत्यज्ञः; न ह्यसत्त्वः कदाचिदात्मा, सत्त्वविशेषाच्चोपलभ्यते ज्ञानविशेष इति ॥१८॥
It is not that the soul is conscious only when it possesses sense organs and is devoid of consciousness otherwise. The soul and mind are inseparable, hence always conscious.
english translation
na cAtmA satsvindriyeSu jJaH, asatsu vA bhavatyajJaH; na hyasattvaH kadAcidAtmA, sattvavizeSAccopalabhyate jJAnavizeSa iti ॥18॥
hk transliteration by Sanscript