How to implement TapGesture of Custom ViewCell in MVVM?

Hi everybody, have a good day!

In my HomePage, I have a ListView with ItemTemplate is another Custom ViewCell (another XAML file)
In Custom ViewCell have a Label and that Label attach a TapGesture

How to fire TapGesture event of Label in Custom ViewCell from HomePageViewModel?

I'm using pure Xamarin.Forms MVVM!

Thank you!