Khamenei made the comment on the White House senior adviser as part of a series of tweets on his English-language Twitter feed.
“The nation of Palestine is under various, severe pressures. Then, the UAE acts in agreement with the Israelis & filthy Zionist agents of the U.S. — such as the Jewish member of Trump’s family — with utmost cruelty against the interests of the World of Islam,” he tweeted.
Kushner is married to President Donald Trump’s daughter Ivanka.
In a veiled threat to the UAE, Khamenei also tweeted: “The #UAE betrayed the world of Islam, the Arab nations, the region’s countries, and #Palestine. Of course, this betrayal won’t last long.
“The UAE rulers opened the door of the region to the Zionists, and they have ignored and normalized the question of Palestine, which is a question about the usurpation of a country. This stigma will remain on them.”
Khamenei used the terms Jewish or Jew in his English and Arabic messages, but not in Spanish or French, The Jerusalem Post reported.