‏البيوع : Hadeeth No:3854 Abu Sa'id al-Khudri (Allaah be pleased with him) reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Gold is to be paid for by gold, silver by silver, wheat by wheat, barley by barley, dates by dates, salt by salt, like by like, payment being made hand to hand. He who made an addit...

‏الحج : Hadeeth No:2712 This hadith is narrated'on the authority of 'Uthman b. 'Abdullah b. Mauhab with the same chain of transmitters. And in the narration transmitted on the authority of Shaiban (the words are):" The Messenoer of Allaah (sallAllaahu alayhi wa sallam) said: Did any one of you command him to attack it or p...