Mahabharata 1.17.16
परिघैश्चायसैः पीतैः संनिकर्षे च मुष्टिभिःनिघ्नतां समरेऽन्योन्यं शब्दो दिवमिवास्पृशत्
parighaiścāyasaiḥ pītaiḥ saṃnikarṣe ca muṣṭibhiḥnighnatāṃ samare'nyonyaṃ śabdo divamivāspṛśat
Our plain-language meaning of this verse is waiting for scholar review.