Amid continued speculation if Anwar Ibrahim would succeed Dr Mahathir Mohamad, the PKR president appealed to all quarters to stop asking the prime minister when he would step down.<br /><br />The Port Dickson MP added that Mahathir told him that if he announced his retirement date, he would become a lame-duck prime minister.<br /><br />Anwar said there is a written agreement regarding the succession plan, which was clearly spelt out ahead of the last general election.