Dua Kumayl (Arabic: دعاء كميل) (literally the Supplication of Kumayl) is a supplication attributed to Ali, who taught it to his companion, Kumayl ibn Ziyad. This supplication is still used by Muslims as a supplicatory prayer. It is famous among Shi'a for its perceived beauty and a traditional supplication in Shia and is a growing Sunni dua.