וּמִמַּתָּנָ֖ה נַחֲלִיאֵ֑ל וּמִנַּחֲלִיאֵ֖ל בָּמֽוֹת׃
and from Mattanah to Nahaliel; and from Nahaliel to Bamoth;
Rashi on Numbers
וממתנה נחליאל — Understand this as the Targum does: And after it had been given them, it descended into the valley.
Sforno on Numbers
וממתנה נחליאל, in spite of this the waters neither increased nor decreased as a result of their behaving so erratically and having to traverse both depressions in the earth and hilly country.