Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 41
Sanskrit:
एवं सप्तदशकृत्वस्तावत्यक्षौहिणीबल: ।युयुधे मागधो राजा यदुभि: कृष्णपालितै: ॥ ४१ ॥
ITRANS:
evaṁ saptadaśa-kṛtvastāvaty akṣauhiṇī-balaḥyuyudhe māgadho rājāyadubhiḥ kṛṣṇa-pālitaiḥ
Translation:
Seventeen times the King of Magadha met defeat in this very way. And yet throughout these defeats he fought on with his akṣauhiṇī divisions against the forces of the Yadu dynasty who were protected by Śrī Kṛṣṇa.