Sunnis is the Al Mahdi dua posted by Shia Muslims authentic based on this Sahih Hadith?
From: Sahih Muslim. Chapter 1, Faith (Kitab Al Iman)
Narrated/Authority of Abu Huraira
that the Messenger of Allah (may peace be upon him) observed: When three things appear faith will not benefit one who has not previously believed or has derived no good from his faith: the rising of the sun in its place of setting, the Dajjal, and the beast of the earth
(Give me a few minutes to leave a link to the dua)
Why do you commit kufr against Shi'ism?