Mahabharata 7.10.14

सौभं दैत्यपुरं स्वस्थं शाल्वगुप्तं दुरासदम्समुद्रकुक्षौ विक्रम्य पातयामास माधवः

saubhaṃ daityapuraṃ svasthaṃ śālvaguptaṃ durāsadamsamudrakukṣau vikramya pātayāmāsa mādhavaḥ

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