‏القسامة والمحاربين والقصاص والديات‏ : Hadeeth No:4154 'Abdullah (b. Mas'ud) reported: Allaah's Messenger (sallAllaahu alayhi wa sallam) stood up and said: By Him besides Whom there is none worthy of worship (in truth) but He, the blood of a Muslim who bears the testimony that there is none worthy of worship (in truth) but Allaah, and I am His Messenger...

‏البيوع : Hadeeth No:3804 A hadith like this is reported on the authority of Abu Mas'ud through another chain of transmitters....