(Laravel) How to associate foreign key of a foreign key in model

I have 3 table with this fields :

User:
id
name
address

Employee:
id
user_id

Profile:
id
employee_id

how can i associate user->name from Profile model

class Profile extends Model
{

    public function employee()
    {
        return $this->belongsTo('App\Employee', 'employee_id');
    }

    public function user()
    {
        return $this->belongsTo('App\User', $employee->user_id);
    }
}

The user() function is obviously wrong, T'm trying to get the user data from the Profile. what is the proper way to do this?

via Chebli Mohamed