‏الصيام : Hadeeth No:2545 Abu Huraira (Allaah be pleased with him) reported the Prophet of Allaah (sallAllaahu alayhi wa sallam) as saying: None among you should observe fast on Friday, but only that he observes fast before it and after it....

‏الحج : Hadeeth No:2738 Abdullah b. Ma'qil said: I sat with Ka'b (Allaah be pleased with him) and he was in the mosque. I asked him about this verse:" Compensation in (the form of) fasting, or Sadaqa or sacrifice." Ka'b (Allaah be pleased with him) said: It was reveal- ed In my case. There was some trouble in my head. I wa...