Mahabharata 12.39.1

वैशंपायन उवाच · vaiśaṃpāyana uvāca

प्रवेशने तु पार्थानां जनस्य पुरवासिनःदिदृक्षूणां सहस्राणि समाजग्मुर्बहून्यथ

praveśane tu pārthānāṃ janasya puravāsinaḥdidṛkṣūṇāṃ sahasrāṇi samājagmurbahūnyatha

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