Mahabharata 6.52.4
अश्वत्थामा कृपश्चैव शीर्षमास्तां यशस्विनौत्रिगर्तैर्मत्स्यकैकेयैर्वाटधानैश्च संयुतौ
aśvatthāmā kṛpaścaiva śīrṣamāstāṃ yaśasvinautrigartairmatsyakaikeyairvāṭadhānaiśca saṃyutau
Our plain-language meaning of this verse is waiting for scholar review.