At the Nuremberg Trials, Eichmann's deputy Dieter Wisliceny (subsequently executed as a war criminal) testified:
"The Mufti was one of the initiators of the systematic extermination of European Jewry and had been a collaborator and adviser of Eichmann and Himmler in the execution of this plan. ... He was one of Eichmann's best friends and had constantly incited him to accelerate the extermination measures. I heard him say, accompanied by Eichmann, he had visited incognito the gas chamber of Auschwitz."
Only the European half of the Mufti's plan was executed and commemorated with Holocaust memorials. Ahmadinejad, al-Husseini's heir, plans to execute the second half by incinerating the Jews of Israel.