Prime Minister Tun Dr Mahathir Mohamad attends Friday prayers during the Kuala Lumpur Summit 2019 December 20, 2019. — Picture by Miera Zulyana

KUALA LUMPUR, Dec 20 — Delegates of the Kuala Lumpur Summit (KL Summit) 2019 today performed Friday prayers, which began with a special sermon emphasising on unity as the main key to the revival of the ummah.