Validate all possibilities of two outcomes - laravel

Question

So I'm getting a callback with two outcomes:
positive: url.com?scope=read_write&code={AUTHORIZATION_CODE}&state={csrf}
negative: url.com?error=access_denied&error_description=The%20user%20denied%20your%20request
I would like to validate all possibilities. My current approach is:
$data = request()->validate([
'scope' => 'required_without:error, error_description',
'code' => 'required_without:error, error_description',
'state' => 'required_without:error, error_description',
'error' => 'required_without:scope,code,state',
'error_description' => 'required_without:scope,code,state'
]);
Actually, it works super fine for every possibility but somehow not for:
$this->get(route('connect.index', [
'error' => $this->error,
'error_description' => $this->error_description,
]));
dd(session('errors'));
The weird part is that I get the error:
#messages: array:3 [
"scope" => array:1 [
0 => "The scope field is required when error / error description is not present."
]
"code" => array:1 [
0 => "The code field is required when error / error description is not present."
]
"state" => array:1 [
0 => "The state field is required when error / error description is not present."
]
]
But that is not true since I see that the values error, error_description are present!
array(2) {
["error"]=>
string(2) "ok"
["error_description"]=>
string(5) "state"
}
Update
#DigitalDrifter helped me, but now, I have got two new test-cases that fail!
$this->get(route('connect.index', [
'scope' => $this->scope,
'code' => $this->code,
'error' => $this->error,
'error_description' => $this->error_description,
]))
->assertStatus(302);
$this->get(route('connect.index', [
'scope' => $this->scope,
'code' => $this->code,
'state' => $this->error,
'error_description' => $this->error_description,
]))
->assertStatus(302);
As you might see I'm expecting to get a Response of 302 but I get 200. It should not be the case. I'm using #DigitalDrifter answer:
$data = request()->validate([
'scope' => 'bail|sometimes|required_without:error,error_description',
'code' => 'bail|sometimes|required_without:error,error_description',
'state' => 'bail|sometimes|required_without:error,error_description',
'error' => 'bail|required_without:scope,code,state',
'error_description' => 'bail|required_without:scope,code,state',
]);

Answer 1

Might have luck with sometimes:
Validating When Present
In some situations, you may wish to run validation checks against a field only if that field is present in the input array. To quickly accomplish this, add the sometimes rule to your rule list:
$data = request()->validate([
'scope' => 'bail|sometimes|required_without:error,error_description',
'code' => 'bail|sometimes|required_without:error,error_description',
'state' => 'bail|sometimes|required_without:error,error_description',
'error' => 'bail|required_without:scope,code,state',
'error_description' => 'bail|required_without:scope,code,state'
]);