获取微博 statuses 未定义？请教大家一下，没找到原因

这个是我写的

 // 用户信息展示
    public function show(User $user){
        $statuses = $user->statuses()
                           ->orderBy('created_at', 'desc')
                           ->paginate(30);
        // $statuses = $user->statuses()->orderBy('created_at', 'desc')->paginate(30);
        return view('users.show', compact('user', 'statuses'));
    }

Call to undefined method Illuminate\Database\Query\Builder::statuses()

这个是报错的

BadMethodCallException
Call to undefined method Illuminate\Database\Query\Builder::statuses()