Shiva Purana

siva.sh/siva-purana/rudra-samhita/117/57

जीवहीनो यथा देहः क्षणादशुचिताम्व्रजेत् ।। भर्तृहीना तथा योषित्सुस्नाताप्यशुचिस्सदा ।।५७।।

sanskrit

Just as a body bereft of the soul becomes unclean in a moment, similarly a woman without a husband is always unclean even though she may take a neat bath.

english translation

jIvahIno yathA dehaH kSaNAdazucitAmvrajet || bhartRhInA tathA yoSitsusnAtApyazucissadA ||57||

hk transliteration by Sanscript