Mahabharata 12.177.38

आकाशजं शब्दमाहुरेभिर्वायुगुणैः सहअव्याहतैश्चेतयते न वेत्ति विषमागतैः

ākāśajaṃ śabdamāhurebhirvāyuguṇaiḥ sahaavyāhataiścetayate na vetti viṣamāgataiḥ

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