Mahabharata 7.158.48

एवमुक्त्वा ययौ तूर्णं त्वरमाणो युधिष्ठिरःस विस्फार्य महच्चापं शङ्खं प्रध्माप्य भैरवम्

evamuktvā yayau tūrṇaṃ tvaramāṇo yudhiṣṭhiraḥsa visphārya mahaccāpaṃ śaṅkhaṃ pradhmāpya bhairavam

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