Mahabharata 5.95.19

भार्यया तु स संमन्त्र्य सह रात्रौ सुधर्मयामातलिर्नागलोकाय चकार गमने मतिम्

bhāryayā tu sa saṃmantrya saha rātrau sudharmayāmātalirnāgalokāya cakāra gamane matim

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