Thematic Bible: All transfers of property made before

Meanwhile, Boaz approached the city gate and sat down there. Just then, the very same related redeemer whom Boaz had mentioned came by, so Boaz called out to him, "Come over and sit down here, my friend!" So the man came over and sat down. Boaz selected ten of the town elders and spoke to them, "Sit down here." So they sat down

That's how Ephron's field in Machpelah, east of Mamre the field, the cave that was in it, and all the trees that were within the boundaries of the field came to be deeded to Abraham in the presence of all the Hittites and everyone who was entering the city gate. After this, Abraham buried his wife Sarah in the cave at the field of Machpelah, east of Mamre (that is, in Hebron) in the land of Canaan. read more.
And so the field with its cave was deeded by the Hittites to Abraham as a burial site.