Parallel
Genesis 24:9
Swete's Septuagint · Berean Standard Bible
Καὶ ἔθηκεν ὁ πάις τὴν Χεῖρα αὐτοῦ ὑπὸ τὸν μηρὸν Ἀβραὰμ τοῦ κυρίου αὐτοῦ, καὶ ὤμοσεν αὐτῷ περὶ τοῦ ῥήματος τούτου.
So the servant placed his hand under the thigh of his master Abraham and swore an oath to him concerning this matter.