Exodus 18:27

Ἐξαπέστειλεν δὲ Μωυσῆς τὸν ἑαυτοῦ γαμβρόν, καὶ ἀπῆλθεν εἰς τὴν γῆν αὐτοῦ.

Then Moses sent away his own father-in-law, and he went away to his land.

וישׁלח משׁה את־חתנו וילך לו אל־ארצו׃