Mahabharata 1.163.18

तं च पार्थिवशार्दूलमानयामास तत्पुरम्तपत्या सहितं राजन्नुषितं द्वादशीः समाः

taṃ ca pārthivaśārdūlamānayāmāsa tatpuramtapatyā sahitaṃ rājannuṣitaṃ dvādaśīḥ samāḥ

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