Mahabharata 13.26.35

दश तीर्थसहस्राणि तिस्रः कोट्यस्तथापराःसमागच्छन्ति माघ्यां तु प्रयागे भरतर्षभ

daśa tīrthasahasrāṇi tisraḥ koṭyastathāparāḥsamāgacchanti māghyāṃ tu prayāge bharatarṣabha

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