ßÊÇÈ ÇáÃÏÈ : Hadeeth No:5709 : Abu Huraira: Allah's Apostle said, "If a man says to his brother, O Kafir (disbeliever)!' Then surely one of them is such (i.e., a Kifir). "...

ßÊÇÈ ÇáÃíãÇä æÇáäÐæÑ : Hadeeth No:6245 : Abu Huraira: A man entered the mosque and started praying while Allah's Apostle was sitting somewhere in the mosque. Then (after finishing the prayer) the man came to the Prophet and greeted him. The Prophet said to him, "Go back and pray, for you have not prayed. The man went back, and having...