Shiva Purana
स्वस्याप्यंशस्य जीवांशो ह्यविद्यामोहितो वशः॥ अन्योऽहमिति जानाति तया मुक्तो भवेच्छिवः॥ १०॥
The individual soul, though it is a part of his becomes deluded by Avidyā. He then thinks that he is different. If he is released from Avidyā he becomes Śiva.
english translation
svasyApyaMzasya jIvAMzo hyavidyAmohito vazaH॥ anyo'hamiti jAnAti tayA mukto bhavecchivaH॥ 10॥
hk transliteration by Sanscript