Mahabharata 8.7.4

महत्यपररात्रे तु तव पुत्रस्य मारिषयोगो योगेति सहसा प्रादुरासीन्महास्वनः

mahatyapararātre tu tava putrasya māriṣayogo yogeti sahasā prādurāsīnmahāsvanaḥ

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