How to Set Multiple Messages for a Single Validation Rule?

[okamoto-pmp]

Hello everyone, I'm new to Laravel and have a question that might be simple for the experienced.

I'm trying to assign multiple messages to a single validation rule within a FormRequest class.
Here's what my validation rule looks like:

public function rules()
{
    return [
        'hoge' => 'before_or_equal:foo|before_or_equal:piyo'
    ];
}

My goal is to display different validation messages depending on the condition that hoge violates.
For instance, if hoge fails the before_or_equal:foo condition, I want to display the message "hoge must be before or equal to foo."
Similarly, if it fails the before_or_equal:piyo condition, I want to show "hoge must be before or equal to piyo."

I attempted to override the messages method as follows:

public function messages()
{
    return [
        'hoge.before_or_equal:foo' => 'hoge must be before or equal to foo',
        'hoge.before_or_equal:piyo' => 'hoge must be before or equal to piyo',
    ];
}

However, this approach doesn't seem to work.
Can anyone advise on how to achieve this in Laravel?
Any help would be greatly appreciated. Thank you!