NEW YORK (CNNMoney) -- Donald Trump has responded to the Saudi billionaire who called him a "disgrace ... to all America."
On Friday, Trump called Prince Alwaleed Bin Talal "dopey" and accused him of wanting "to control our U.S. politicians with daddy's money." Trump said he wouldn't be controlled if he was elected.
Bin Talal's tweet, which Trump was responding to, also encouraged the Republican front runner to drop out of the race for president.
Bin Talal's tweet came after Trump's recent proposal to keep Muslims out of the U.S.
Prince Bin Talal owns 5% of Twitter -- he's the second biggest shareholder behind former CEO and co-founder Evan Williams.
Bin Talal is also the 34th richest person in the world, according to Forbes. In July, he announced he would be donating his roughly $32 billion fortune to charity after his death.
Trump's comments about Muslims also earned the ire of another prominent businessman this week.
On Thursday, Qatar Airways CEO Akbar Al Baker told CNN's Richard Quest that Trump would "not be welcome" in Muslim countries because of his comments.
Al Baker also called him "naïve" and said Trump's comments weren't in his best interests -- Trump has investments in Muslim countries.
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