Mahabharata 1.158.26

पुरास्त्रमिदमाग्नेयं प्रादात्किल बृहस्पतिःभरद्वाजस्य गन्धर्व गुरुपुत्रः शतक्रतोः

purāstramidamāgneyaṃ prādātkila bṛhaspatiḥbharadvājasya gandharva guruputraḥ śatakratoḥ

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