Mahabharata 12.1.2

तत्र ते सुमहात्मानो न्यवसन्कुरुनन्दनाःशौचं निवर्तयिष्यन्तो मासमेकं बहिः पुरात्

tatra te sumahātmāno nyavasankurunandanāḥśaucaṃ nivartayiṣyanto māsamekaṃ bahiḥ purāt

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