Mahabharata 13.17.104

बलवांश्चोपशान्तश्च पुराणः पुण्यचञ्चुरीकुरुकर्ता कालरूपी कुरुभूतो महेश्वरः

balavāṃścopaśāntaśca purāṇaḥ puṇyacañcurīkurukartā kālarūpī kurubhūto maheśvaraḥ

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