Mahabharata 3.294.20

वैशंपायन उवाच · vaiśaṃpāyana uvāca

ततः कर्णः प्रहृष्टस्तु उपसंगम्य वासवम्अमोघां शक्तिमभ्येत्य वव्रे संपूर्णमानसः

tataḥ karṇaḥ prahṛṣṭastu upasaṃgamya vāsavamamoghāṃ śaktimabhyetya vavre saṃpūrṇamānasaḥ

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