וָֽאֶקְבְּצֵ֗ם אֶל־הַנָּהָר֙ הַבָּ֣א אֶֽל־אַהֲוָ֔א וַנַּחֲנֶ֥ה שָׁ֖ם יָמִ֣ים שְׁלֹשָׁ֑ה וָאָבִ֤ינָה בָעָם֙ וּבַכֹּ֣הֲנִ֔ים וּמִבְּנֵ֥י לֵוִ֖י לֹא־מָצָ֥אתִי שָֽׁם׃
And I gathered them together to the river that runneth to Ahava; and there we encamped three days; and I viewed the people, and the priests, and found there none of the sons of Levi.
Rashi on Ezra
to the flowing river Heb. אֶל הַנָהָר הַבָּא, lit. to the coming river.