‏البيوع : Hadeeth No:3758 Ibn Umar (Allaah be pleased with them) reported that Allaah's Messenger (sallAllaahu alayhi wa sallam) contracted with the people of Khaibar the (trees) on the condition that he would have half the produce in fruits and harvest....

‏الصلاة : Hadeeth No:2086 The hadith as narrated by Shaibani has been narrated through another chain of transmitters....