Haj Amin Al-Husseini was in fact informed of the holocaust in a meeting with Eichmann. "Wolfgang G. Schwanitz notes that in his memoirs Husseini recalled that Heinrich Himmler, in the summer of 1943, while confiding some German war secrets, inveighed against Jewish "war guilt", and, speaking of Germany’s persecution of the Jews said that "up to now we have exterminated (in Arabic, abadna) around three million of them"" He is the one who admitted to knowing about it. It doesn't make any other palestinians guilty, but he indeed knew about the extermination of Europe's Jews.
German finance minister says need to limit number of refugees coming to Europe (Reuters)
from the article: An Egyptian shop called 'Hitler'