Netanyahu also attacked Benny Gantz and Yair Lapid, saying leading the country “is not for them,” because they do not understand the Iranian threat.
Previously, the committee rejected Netanyahu's request to receive the donations and ordered him to return $300,000 to donors which he had received without the committee's approval.
'The Submarine Affair' involved a deal with Germany over nuclear submarines in which certain top defense officials and Netanyahu officials allegedly illegally skimmed off the top.
Israel’s purchase of submarines from Germany plunges the Navy into scandal.
"Let the investigation be conducted," says Prime Minister Benjamin Netanyahu.
The news comes shortly after several senior officials and key suspects in the case were detained and placed under house arrest.
Israel's German submarine affair raises questions about how the case will affect the country's defense ties throughout the world.
Der Spiegel says National Security Council approves deal on condition it can be cancelled if corruption allegations are proven.
Israël mise de plus en plus sur les submersibles dans sa force de dissuasion
The prime minister is not a suspect in the investigation.