Is it necessary to inform the owner of a damaged car after accidentally hitting it, knowing that the damage was minor and the car was old and full of scratches?

If it is highly probable that the collision caused scratches to the car, then its owner must be informed, and the person who caused the collision is held liable until the owner absolves him. However, if it is highly probable that it did not cause any scratches, then there is no obligation to inform him, because the original state is the acquittal of liability.