The prime minister said that because of the probe over 1MDB, Najib had lost the privileges accorded to former prime ministers.
“But if he is cleared, these privileges will be returned,” he said after breaking fast with police personnel in Bukit Aman this evening.
Earlier today, Najib claimed that his bodyguards and police escorts had been withdrawn by the Pakatan Harapan (PH) government.
In a Facebook post, which featured pictures of him saying goodbye to the officers, Najib said only his aide de camp (ADC) remained.
A multibillion-dollar scandal at 1MDB, which was founded by Najib, is being investigated in at least six countries, including the US.
Najib has denied any wrongdoing.
Meanwhile, Inspector-General of Police Mohamad Fuzi Harun confirmed that the ADC for Najib and his wife Rosmah Mansor had been retained.
He also said that not all of the bodyguards had been withdrawn. The number had been reduced.
Najib, Fuzi said, would still retain his driver.
“We will adhere to the standard operating procedures that have been set, where former PMs are accorded certain privileges.”