Session Message not showing

@Sinnbeck

Blade

 @if(Session::has('success'))
    <div class="alert alert-success">
        {{Session::get('success')}}
    </div>
@endif
    @if ($message = Session::get('success'))
    <div class="alert alert-warning alert-dismissible fade show" role="alert">
      <strong>{{ $message }}</strong>
      <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
    </div>
    @endif
    
    <form action="message-sent" method="post">
        @csrf
        <button type="submit"> fff </button>
    </form>

Route Route::post('message-sent', [TestController::class, 'message_send']); Route::get('message', [TestController::class, 'message'])->name('messss');

and controller

 public function message_send(Request $request)
    {
        
        return redirect()->route('messss')
        ->with('success','You have no permission for this page!');
         
    }