Mahabharata 3.257.5

कथं हि पत्नीमस्माकं धर्मज्ञां धर्मचारिणीम्संस्पृशेदीदृशो भावः शुचिं स्तैन्यमिवानृतम्

kathaṃ hi patnīmasmākaṃ dharmajñāṃ dharmacāriṇīmsaṃspṛśedīdṛśo bhāvaḥ śuciṃ stainyamivānṛtam

Our plain-language meaning of this verse is waiting for scholar review.