Mahabharata 7.85.77

नागानां शृणु शब्दं च पत्तीनां च सहस्रशःसादिनां द्रवतां चैव शृणु कम्पयतां महीम्

nāgānāṃ śṛṇu śabdaṃ ca pattīnāṃ ca sahasraśaḥsādināṃ dravatāṃ caiva śṛṇu kampayatāṃ mahīm

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