Mahabharata 3.73.23

वैक्लव्यं च परं गत्वा प्रक्षाल्य च मुखं ततःमिथुनं प्रेषयामास केशिन्या सह भारत

vaiklavyaṃ ca paraṃ gatvā prakṣālya ca mukhaṃ tataḥmithunaṃ preṣayāmāsa keśinyā saha bhārata

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