‏السلام : Hadeeth No:5411 Ibn 'Umar reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: None should make one'& brother stand and then sit at his place (and it was common with) Ibn Umar that when any person stood in the company (with a view to making room for him) he did not sit there....

‏البيوع : Hadeeth No:3800 Abu Huraira (Allaah be pleased with him) reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Excess water must not be withheld so that the growth of herbage may be hindered....