‏الإمارة : Hadeeth No:4693 It has been narrated through a different chain of transmitters on the authority of Sufyan who said that he heard 'Umar b. al-Khattab relate (this tradition) from the Prophet (sallAllaahu alayhi wa sallam) while he was delivering a sermon from the pulpit....

‏البيوع : Hadeeth No:3874 Abu Nadra reported: I asked Ibn Abbas (Allaah be pleased with them) about the conversion (of gold and silver for silver and gold). We said: Is it hand to hand exchange? I said: Yes. whereupon he said: There is no harm in it. I informed Abu Sa'id about it, telling him that I had asked Ibn 'Abbas abou...