Shiva Purana

siva.sh/siva-purana/uma-samhita/22/51

इति देहगृहं ह्येतन्नित्यस्यानित्यमात्मनः ।। अविशुद्धं विशुद्धस्य कर्मबंधाद्विनिर्मितम् ।। ५१ ।।

sanskrit

Such is the transient abode, the body of the eternal soul. It is impure while the soul is pure. It is generated due to his past actions and their bondage.

english translation

iti dehagRhaM hyetannityasyAnityamAtmanaH || avizuddhaM vizuddhasya karmabaMdhAdvinirmitam || 51 ||

hk transliteration by Sanscript