Mahabharata 16.7.7
नित्यं त्वं कुरुशार्दूल कृष्णश्च मम पुत्रकःतावुभौ वृष्णिनाशस्य मुखमास्तां धनंजय
nityaṃ tvaṃ kuruśārdūla kṛṣṇaśca mama putrakaḥtāvubhau vṛṣṇināśasya mukhamāstāṃ dhanaṃjaya
Our plain-language meaning of this verse is waiting for scholar review.