Dominic had appeared right in front of Madara while inside the Kamui world

Madara: What?!

Dominic: Who...

Dominic clenched his hand to a fist and reeled it back for a punch

Dominic: ARE YOU?!

Dominic shattered the white mask of Madara and smiled knowing he will finally see who was under the mask

Dominic: Now who-

Dominic stopped, his legs became weak, his heart racing, his hands shaking

Dominic: It..can't be..

Obito: What's wrong Dominic? You look like you've just seen a ghost. How about a hug to greet your.....best friend