‏الصلاة : Hadeeth No:1846 Abu Huraira reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: If you (even) ask your companion to be quiet on Friday while the Imam is delivering the sermon, you have in fact talked irrelevance....

‏الفتن وأشراط الساعة‏ : Hadeeth No:7005 Ibn Umar reported that Allaah's Messenger (sallAllaahu alayhi wa sallam). made a mention of Dajjil in the presence of the people and said: Allaah is not one-eyed and behold that Dajjal is blind of the right eye and his eye would be like a floating grape....