‏الزهد والرقائق‏ : Hadeeth No:7099 Nu'man b. Bashir said: Don't you eat and drink according to your heart's desire, whereas I saw that your Prophet (sallAllaahu alayhi wa sallam) (at times) could not find even an inferior quality of the dates with which he could fill his belly? Qutaiba, however, did not make a mention of It....

‏البيوع : Hadeeth No:3653 Jabir b. Abdullah (Allaah be pleased with them) reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: When you purchase foodgrains, do not sell them until you have taken possession of them....