He was responding to Muhyiddin who said in a statement earlier today that he was sacked as the deputy prime minister in 2015 after he called for a transparent investigation into the sovereign wealth fund.

However, Najib denied that Muhyiddin was sacked due to his comments on the 1MDB scandal.

“Unless Mukhriz Mahathir lied in court, he (Muhyiddin) was fired as the deputy prime minister in July 2015 because he was conspiring with Dr Mahathir Mohamad and Mukhriz since 2014 — long before 1MDB became an issue,” he said in a Facebook post.

He also shared a news report of Mukhriz reportedly admitting the matter in 2017.

Najib added that almost a year later, Muhyiddin was fired from Umno in May 2016 for violating party discipline after he attended an event with the opposition in March 2016.

He then shared a link to a news report that featured a photo of Muhyiddin sitting next to Mahathir at a press conference in Kuala Lumpur on March 4, 2016. Mahathir had resigned from Umno the month before.

“Enough with the lies. The evidence is all there,” he said.

Najib added that Muhyiddin had also betrayed Mahathir by plotting to bring down the Pakatan Harapan (PH) government with the Sheraton Move and rose from his home minister’s post to become the country’s eighth prime minister.

“Yet, until today, Muhyiddin refuses to admit that it was his voice in the ‘scheme of things’ recording,” he added.

The phrase “scheme of things” is from an audio recording allegedly leaked from a Bersatu Supreme Council meeting last year in which a man, said to be Muhyiddin, is heard proposing that Bersatu shore up its position by joining forces with Umno to form Malaysia’s largest Malay political party, with offers of positions in government-linked companies (GLCs) made to Umno leaders as inducement.