If the RM2.6 billion political donation claim was fraudulent, the Saudi royal household should be enraged with Prime Minister Najib Abdul Razak, according to a minister.

However, Abdul Rahman Dahlan, who is also BN strategic director, pointed out this was not the case.

"By right (the) Saudi royal household should be fuming mad with PM for accusing them of giving him money. Yet PM is there now as their guest of honour," he tweeted.

By right Saudi royal household shld be fuming mad with PM for accusing them giving him money. Yet PM is there now as their guest of honor!

— Abdul Rahman Dahlan (@mpkotabelud) March 3, 2016

Similarly, Gerakan Youth chief Tan Keng Liang tweeted: "If PM lied on Saudi donation, then why Saudi royalty still give him VVIP treatment, plus reaffirming strong ties with our country?"

"Saudi King didn't deny explanation donation came from them. They also gave him VVIP treatment in his visit. Will WSJ ( Wall Street Journal ) report this?" he asked.

The Wall Street Journal , which has published several damning reports on this matter, has been accused of being used by those campaigning against Najib.

Meanwhile, Najib tweeted a photograph of himself with Saudi King Raja Salman Abdulaziz Al Saud.

The caption read, " menghadap (audience) and beramah mesra (exchanging pleasantries) bersama baginda ".

Menghadap dan beramah mesra bersama Baginda Raja Salman Abdulaziz Al Saud, Raja Arab Saudi & Penjaga Dua Masjid Suci pic.twitter.com/sMfZCFBnqB

— Mohd Najib Tun Razak (@NajibRazak) March 3, 2016

The RM2.6 billion was transferred to the prime minister's accounts prior to the 2013 general election.

Following an investigation, attorney-general Mohamed Apandi Ali cleared Najib of any wrongdoing, and revealed that RM2.03 billion was later returned to the donor.

However, detractors continue to accuse the government of covering up the matter while the prime minister has blamed the allegations against him on those conspiring to topple him.

Najib is currently in Saudi Arabia, where he is attending the Jeddah Economic Forum.

In his speech at the forum yesterday, the prime minister said ties between the two nations have been characterised by respect and best of friendship.

"Indeed, I am proud to say that we are like brothers," he added.

Najib also expressed gratitude to the Saudi royal family for their support over several decades.

"We will always appreciate it, and we will never forget it," he said.