Mahabharata 12.45.5

ब्राह्मणानां सहस्रं च स्नातकानां महात्मनाम्सहस्रनिष्कमेकैकं वाचयामास पाण्डवः

brāhmaṇānāṃ sahasraṃ ca snātakānāṃ mahātmanāmsahasraniṣkamekaikaṃ vācayāmāsa pāṇḍavaḥ

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