‏البيوع : Hadeeth No:3694 'Abdullah (b. Umar) reported that Allaah's Prophet (sallAllaahu alayhi wa sallam) forbade Muzabana, i. e. buying of fresh dates (on) the trees for dry dates by measure, and the buying of grapes for raisins by measure and the selling of field of corn for corn by measure....

‏الأشربة : Hadeeth No:5017 Anas reported Allaah's Prophet (sallAllaahu alayhi wa sallam) disapproved the drinking of water while standing....