Both of my friends are accusing the other of unfriending each other. Is there a way we can prove who did it?

Is there a notification or a log or something I can look into both of their accounts to see who unfriended the other and see who is lying?

edit: Because this subreddit is incredibly unhelpful unless you want to whine about Mark Zuckerberg's politics, I found the solution. If you go to settings and activity log and connections and friends as either of the users, there will be a section for friends and from there it actually tells you who you friended AND unfriended historically. It's kinda insane, I researched this and not a single site or post said this. Even multiple AI apps said it can't be done. Very weird. Hope this helps someone who randomly googles this.