מדרש על רות 2:10

“She fell on her face, and prostrated herself to the ground, and said to him: Why have I found favor in your eyes, to acknowledge me, and I a foreigner?” (Ruth 2:10).
“She fell on her face, and prostrated herself to the ground…[to acknowledge me [lehakireni]],” it teaches that she prophesied that he was destined to be intimate with her [lehakirah] in the way of the world.