Mahabharata 13.88.10

आनन्त्याय भवेद्दत्तं खड्गमांसं पितृक्षयेकालशाकं च लौहं चाप्यानन्त्यं छाग उच्यते

ānantyāya bhaveddattaṃ khaḍgamāṃsaṃ pitṛkṣayekālaśākaṃ ca lauhaṃ cāpyānantyaṃ chāga ucyate

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