Mahabharata 5.186.7

ततश्च प्रतिसंहृत्य तदस्त्रं स्वापनं मृधेब्रह्मास्त्रं दीपयां चक्रे तस्मिन्युधि यथाविधि

tataśca pratisaṃhṛtya tadastraṃ svāpanaṃ mṛdhebrahmāstraṃ dīpayāṃ cakre tasminyudhi yathāvidhi

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