Targum zu Bamidbar 21:18

the well which the fathers of the world, Abraham Izhak, and Jakob digged: the princes who were of old digged it, the chiefs of the people: Mosheh and Aharon, the scribes of Israel, found it with their rods; and from the desert it was given to them for a gift.

the well which Abraham, Izhak, and Jakob, the princes of the world, at the beginning did see, the sages of the world, the Sanhedrin the seventy wise men who were appointed by name beheld it: Mosheh and Aharon, the scribes of Israel, found it with their rods, and from the desert it was given to them as a gift.