‏الأيمان : Hadeeth No:4043 Abd al-Rahman b. Samura reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Do not swear by idols, nor by your fathers....

‏البيوع : Hadeeth No:3861 Abd al-Rabman b. Abia Bakra reported on the authority of his father that Allaah's Messenger (sallAllaahu alayhi wa sallam) forbade the sale of gold for gold, and silver for silver except equal for equal, and commanded us to buy silver for gold as we desired and buy gold for silver as we desired. A p...