PKR vice-president Rafizi Ramli has claimed that a former Malaysian Anti-Corruption Commission (MACC) top officer is his source with regard to an allegation which implicated an ex-PAS top leader.

"He (the source) was the most senior MACC officer heading investigations into 1MDB funds and Prime Minister Najib Abdul Razak's involvement in the scandal.

"As such, he has detailed and legitimate information regarding the investigation," the Pandan lawmaker said in a statutory declaration (SD), which he revealed to the media this afternoon.

According to Rafizi, he had met the former MACC officer on Jan 28 to inquire about how he was doing after retirement.

The two of them, he said, exchanged information as regular citizens.

Speaking to Malaysiakini later, Rafizi said he had released details about the whistleblower's position as a graftbuster, with the latter's consent.

“Yes, he was agreeable to me making the SD in this manner,” he added.

In his SD, Rafizi accused former PAS deputy president Nasharudin Mat Isa (photo) of receiving funds from SRC International, which is a former subsidiary of 1MDB.

He also alleged that the funds originated from Prime Minister Najib Abdul Razak's personal account and were transferred to Nasharudin through a lawyer.

Nasharudin is the current chief executive of the Global Movement of Moderates, which is a brainchild of the Najib administration. He is also a member of the Malaysian Anti-Corruption Commission (MACC) Consultation and Corruption Prevention Panel.

Malaysiakini has contacted Nasharudin for comment.

Meanwhile, PAS has denied that the allegation is related to the party, with secretary-general Takiyuddin Hassan describing it as Nasharudin's personal matter.

Takiyuddin also denied PAS had benefited from the alleged funds.

Rafizi's SD also featured a Sarawak Report chart, which detailed payments allegedly made from the prime minister's accounts in 2015. No payment to Nasharudin is stated in the chart.

Najib has denied abusing public funds for personal gain. He has also been cleared of any wrongdoing by attorney-general Mohamed Apandi Ali.

Rafizi, who plans to lodge a report on his claim with the MACC tomorrow morning, said this would be a ‘test case’ for the MACC's new leadership.

“I know that they are on hyperdrive, trying to prove to the public that despite being a political appointee of Najib, they are honest and independent.

“Now this is the time. The investigation paper, I’m told, has been completed. It is ready, and therefore MACC must take a position on this,” Rafizi told a press conference.

He claimed that MACC had questioned the lawyer involved, and even obtained a copy of the cheque used in the transactions.