Mahabharata 14.18.26

इह तत्क्षरमित्युक्तं परं त्वमृतमक्षरम्त्रयाणां मिथुनं सर्वमेकैकस्य पृथक्पृथक्

iha tatkṣaramityuktaṃ paraṃ tvamṛtamakṣaramtrayāṇāṃ mithunaṃ sarvamekaikasya pṛthakpṛthak

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