Validating forms in laravel

I want to replace between:min,max min and max using variables containing row values from the table instead of hard coding row the values.

$this->validate($request, [
            'borrower_id' => 'required',
            'loan_limit' => 'required',
            'loan_amount' => 'required|numeric|between:min,max',
            'interest_rate' => 'required',
            'duration' => 'required',
            'duration_term' => 'required',
        ]);

It doesn't show the actual min and max values one should enter in the input field instead it throws an validation error on the input field.

screenshot

The loan amount must be between min and max.

I want it to display the variables containing the minimum and maximum values stored in the database.

Any help guys would be much appreciated.

via Chebli Mohamed