‏البيوع : Hadeeth No:3623 Ibn 'Umar (Allaah be pleased with them) reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Do not go out to meet merchandise in the way, (wait) until it is brought into the market. This hadith has been reported on the authority of Ibn Numair but with a slight change of words....

‏البيوع : Hadeeth No:3645 Ibn Umar (Allaah be pleased with them) reported: We used to buy foodgrains during the lifetime of Allaah's Messenger (sallAllaahu alayhi wa sallam). He (the Prophet) would then send to us one who commanded us to take them (the foodgrains) to a place other than the one where we had bought them before...