Mahabharata 1.196.17
श्रूयते हि पुरा कश्चिदम्बुवीच इति श्रुतःआसीद्राजगृहे राजा मागधानां महीक्षिताम्
śrūyate hi purā kaścidambuvīca iti śrutaḥāsīdrājagṛhe rājā māgadhānāṃ mahīkṣitām
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book