Former premier Dr Mahathir Mohamad left the palace at around 3pm today, an hour after he arrived.
The Langkawi MP arrived at the Istana Negara in a gray Proton X70 at 1.59pm.
Mahathir is the pro-tem chairperson of Parti Pejuang Tanah Air (Pejuang), which has yet to obtain a registration from the Registrar of Societies (ROS)