Mahabharata 13.109.32

मासि मासि त्रिरात्राणि कृत्वा वर्षाणि द्वादशगणाधिपत्यं प्राप्नोति निःसपत्नमनाविलम्

māsi māsi trirātrāṇi kṛtvā varṣāṇi dvādaśagaṇādhipatyaṃ prāpnoti niḥsapatnamanāvilam

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