Targum zu Schemot 2:21

But when Reuel knew that Mosheh had fled from before Pharoh he cast him into a pit; but Zipporah, the daughter of his son, maintained him with food, secretly, for the time of ten years; and at the end of ten years brought him out of the pit. And Mosheh went into the bedchamber of Reuel, and gave thanks and prayed before the Lord, who by him would work miracles and mighty acts. And there was shown to him the Rod which was created between the evenings, and on which was engraven and set forth the Great and Glorious Name, with which he was to do the wonders in Mizraim, and to divide the sea of Suph, and to bring, forth water from the rock. And it was infixed in the midst of the chamber, and he stretched forth his hand at once and took it. Then, behold, Mosheh was willing to dwell with the man, and he gave Zipporah, the daughter of his son, to Mosheh.