Phison
One of the rivers of paradise mentioned in Genesis; Jerome identifies it with a very wide river that Apollonius crossed on his way to the Brahmans.
Pope Clement VIII, Jerome's Prefaces, On Worship
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II. JEROME TO PAULINUS.
— Apollonius crossed the very wide river Phison to reach the Brahmans
"having crossed the very wide river Phison, he reached the Brahmans"