Display datagriditem error dictionary as tooltip

See more:

C#

WPF

.NET-Core

I have a set of items, let's say Person:

public class Person : INotifyPropertyChanged, INotifyDataErrorInfo
{
  // INotifyPropertyChanged and INotifyDataErrorInfo code goes here

  private string name;

  public string Name
  {   
      get { return name; }
      set 
       {
          name = value;
          RaisePropertyChanged("Name");
          Validate("Name");
       }
  }


  private int age;

  public int Age
  {   
      get { return age; }
      set 
       {
          age= value;
          RaisePropertyChanged("Age");
          Validate("Age");
       }
  }
}

//Validation code

I managed to get the validation working, however I don't know how to display the item's Error when user inputs figure 18 and below as the tooltip because the tooltip shows the viewmodel's errors instead. How can I get the datagridcell tooltip to instead show error of the Person object instead?

Here's the Datagrid code:

<DataGrid ItemsSource="{Binding PersonsList, Mode=TwoWay, UpdateSourceProperty=PropertyChanged}", AutoGenerateColumns="False">
    <DataGridTextColumn Header="Name" Text="{Binding Name, Mode=TwoWay, UpdateSourceProperty=PropertyChanged, ValidatesOnNotifyDataErrors=True}" />
    <DataGridTextColumn Header="Age" Text="{Binding Age, Mode=TwoWay, UpdateSourceProperty=PropertyChanged, ValidatesOnNotifyDataErrors=True}" />
</Datagrid>

What I have tried:

I Have no idea what to do here