RIYADH/Washington - Donald Trump is a disgrace and should pull out of the United States presidential race, Saudi Arabian billionaire Prince Alwaleed bin Talal tweeted late on Friday.

‘@realDonaldTrump You are a disgrace not only to the GOP but to all America,’ Alwaleed said on his official Twitter account, @Alwaleed_Talal. ‘Withdraw from the U.S presidential race as you will never win.’

Alwaleed is an unusually outspoken member of the Saudi royal family, who chairs Kingdom Holding Co. The diversified firm’s interests include US-banking giant Citigroup. A statement early Saturday from Alwaleed’s office said his tweet was in response to Trump’s ‘anti-Islam statement’.

Alwaleed is a devout but moderate Muslim. Trump, the frontrunner for the Republican nomination, has been lambasted both in the US and abroad for his proposal made on Monday to temporarily bar Muslims from entering the US. Trump’s comments followed a shooting rampage by a Muslim couple in San Bernardino, California, which left 14 dead.

In the meanwhile, Donald Trump hit back at Saudi Arabian fellow billionaire after the prince branded him a disgrace and said he should pull out of the race for the White House. Prince Alwaleed bin Talal had reacted to the Republican presidential frontrunner’s proposal earlier this week that all Muslims should be temporarily barred from entering the United States. ‘Prince Alwaleed Talal wants to control our US politicians with daddy’s money. Can’t do it when I get elected,’ Trump wrote on Twitter, in the same typically confrontational fashion that has been the earmark of his bombastic presidential campaign.

It came after Alwaleed, a devout but moderate Muslim, took exception to what his office called Trump’s ‘anti-Islam statement.’

‘You are a disgrace not only to the GOP but to all America,’ Alwaleed had tweeted to Trump, referring to the Republican Party. ‘Withdraw from the US presidential race as you will never win.’ Alwaleed is an unusually outspoken member of the Saudi royal family who chairs Kingdom Holding Co. The diversified firm’s interests include US-banking giant Citigroup. Trump has been lambasted both in the US and abroad for his Muslim plan, which followed a shooting rampage by a Muslim couple in San Bernardino, California, which left 14 dead.

Moreover, footage of actor Harrison Ford reacting to praise by Republican White House hopeful Donald Trump for his patriotic performance in the film ‘Air Force One’ has gone viral. In the 1997 flick, Ford plays a US president who stands up to terrorists after they hijack his flight.

‘I love Harrison Ford - and not just because he rents my properties. He stood up for America,’ the billionaire real estate mogul and GOP presidential frontrunner recently told The New York Times of Ford’s character. In an interview Wednesday with Australia’s ‘Studio 10’ morning show, a semiserious Ford shot back.

‘It’s a movie. Donald, it was a movie!’ Ford said, looking straight into the camera with a slight smile on his face. ‘It’s not like this in real life. But how would you know?’ The snippet of Ford’s interview was among the topics trending on social media Friday, and has been viewed hundreds of thousands of times on YouTube. It came amid national and international furor over Trump’s controversial plan to ban Muslims from entering the United States. Mo Fathelbab, general manager and a stand-up comic himself, sees the offer as the light-hearted way for a comedy club to express outrage over the proposal by Trump, the Republican front-runner in opinion polls ahead of the November 2016 US presidential election.

‘I’m a Muslim-American and I’m tired of the rampant Islamophobia overtaking the campaign,’ Fathelbab told Reuters in an email on Friday. ‘And until Muslim Mel Brooks appears on the scene to comically knock down Trump with our version of ‘The Producers,’ this is the next best thing.’

A representative of the Trump campaign could not be immediately reached for comment. Fathelbab said asking someone to prove that he or she is a Muslim is ‘a very silly idea to begin’. He does not expect too many people to be able to recite the surah and gain free entry into the club, located in the New York City’s hip Williamsburg neighborhood in the borough of Brooklyn, one of New York City’s most diverse.