[368] The Blessed One was dwelling at Sāvatthī. …
Then King Ajātasattu Vedehiputta of Magadha, having mustered a fourfold army (caturaṅginī senā), marched out against King Pasenadi of Kosala toward Kāsi.
King Pasenadi of Kosala heard: "It is said that King Ajātasattu Vedehiputta of Magadha, having mustered a fourfold army, has marched out against me toward Kāsi."
Then King Pasenadi of Kosala, having mustered a fourfold army, counter-marched against King Ajātasattu Vedehiputta of Magadha, toward Kāsi.
Then King Ajātasattu Vedehiputta of Magadha and King Pasenadi of Kosala joined battle. And in that battle King Ajātasattu Vedehiputta of Magadha defeated King Pasenadi of Kosala.
Defeated, King Pasenadi of Kosala withdrew to Sāvatthī, his own royal capital.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.