Mahabharata 12.217.1

भीष्म उवाच · bhīṣma uvāca

पुनरेव तु तं शक्रः प्रहसन्निदमब्रवीत्निःश्वसन्तं यथा नागं प्रव्याहाराय भारत

punareva tu taṃ śakraḥ prahasannidamabravītniḥśvasantaṃ yathā nāgaṃ pravyāhārāya bhārata

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