hello everyone i have laravel Laravel Framework 10.48.28
and mongodb 1.45.3

i have tow collections
permissions
permission_curds

hasMany(Permission_curd::class, 'permission_id', '_id');
    }
}

and this is my Permissino_curd model

now i did this in my controller

$permission = Permission::with('permission_curds')->first();
dd($permission->permission_curds);

i get this result

empty array

this is my permission collection

and this is my permission_curds collection

as you can see the _id is object to have relation
ive tried this

$permission_curds = Permission_curd::where('permission_id',Helper::object_id('67a71938dd8a9219ab0d632b'))->get();
dd($permission_curds);

i get result

not empty array
if i store the permission_id as normal string
it works find but chatgpt told me do not store the foreign key as noremal text store it as objectId
this is my Helper::object_id() function code

use MongoDB\BSON\ObjectId;
public static function object_id($id)
{
    if ($id === null || $id instanceof ObjectId) {
        return $id;
    }
    return new ObjectId($id);
}

can anyone please help me
thanks