Laravel5.7 Login Redirect base from User Role(Spatie/Laravel-Permission package)

LoginController.php

<?php

namespace App\Http\Controllers\Auth;

use App\Http\Controllers\Controller;
use Illuminate\Foundation\Auth\AuthenticatesUsers;
use Illuminate\Http\Request;


class LoginController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Login Controller
    |--------------------------------------------------------------------------
    |
    | This controller handles authenticating users for the application and
    | redirecting them to your home screen. The controller uses a trait
    | to conveniently provide its functionality to your applications.
    |
    */

    use AuthenticatesUsers;

    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('guest')->except('logout');
    }
    
    /** This method handles redirection base from a given role after a user is authenticated */
    protected function authenticated(Request $request, $user)
    {
        if ($user->hasRole('Admin')) {
            return redirect('admin/dashboard');
            exit(0);
        } elseif ($user->hasRole('Tenant')) {
            return redirect('tenant/dashboard');
            exit(0);
        }

        return redirect(route('user.index'));
        exit(0);
    }
    
    /** This method enables a user loggedin using email or username. 
        For authenticating using `username` there must be a username column in the users table.
    */
    public function username()
    {
       $login = request()->input('log');
       $field = filter_var($login, FILTER_VALIDATE_EMAIL) ? 'email' : 'username';
       request()->merge([$field => $login]);
       return $field;
    }
    
  /** This method overrides the validation for login fields.
      Since we change the `name=password` field to `name=pwd` in the login form.
      We need to override this method from `AuthenticatesUsers` trait for the validation to work properly.
  */
    protected function validateLogin(Request $request)
    {
        $request->validate([
            $this->username() => 'required|string',
            'pwd' => 'required|string',
        ]);
        request()->merge(['password' => $request->input('pwd')]);
    }

}