Mahabharata 12.178.6

वस्तिमूलं गुदं चैव पावकं च समाश्रितःवहन्मूत्रं पुरीषं चाप्यपानः परिवर्तते

vastimūlaṃ gudaṃ caiva pāvakaṃ ca samāśritaḥvahanmūtraṃ purīṣaṃ cāpyapānaḥ parivartate

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