Yes he I do have proof, Izanagi needs to be activated BEFORE you get hit, not AFTER you get hit.
If he uses Amaterasu before Tobi sucks him up it will go right through him, when Tobi touches him it is over,
Exploding clones are stopped by a 5 min. of Izanagi and then Tobi sucks in Itachi.
Itachi can't hit Tobi.