‏الصيام : Hadeeth No:2523 Abu Musa reported that the people of Khaibar (most of them were Jews) observed fast on tht day of 'Ashura and they treated it as 'Id and gave their women ornaments and beautiful dresstowear. The Messenger of Allaah (sallAllaahu alayhi wa sallam) said: You (only) observe fast on this day....

‏البيوع : Hadeeth No:3700 Ibn Umar (Allaah be pleased with them) reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: If anyone buys palm-trees after they have been fecundated the fruit belongs to the seller unless the buyer makes a proviso....