اَلتَّكْوِينُ 24:9

فَوَضَعَ ٱلْعَبْدُ يَدَهُ تَحْتَ فَخْذِ إِبْرَاهِيمَ مَوْلَاهُ، وَحَلَفَ لَهُ عَلَى هَذَا ٱلْأَمْرِ.

And the servant put his hand under the thigh of Abraham his master, and sware to him concerning that matter.