‏الحج : Hadeeth No:2718 A'isha (Allaah be pleased with her) reported Allaah'* Prophet (sallAllaahu alayhi wa sallam) as saying: Five are the harmful things which should be killed in the state of Ihram or otherwise: snake, speckled crow. rat. voracious dog, and kite....

‏البيوع : Hadeeth No:3649 Ibn 'Umar (Allaah be pleased with them) reported that they were beaten during the lifetime of Allaah's Messenger (sallAllaahu alayhi wa sallam) if they had bought foodgrains in bulk and then sold them in the spot without shifting them (to some other place)....