He reported God's messenger as saying,“There is no infection, no hama, and no serpent in a hungry belly." A nomadic Arab asked,“Messenger of God, how is it that when camels are in the sand as if they were gazelles* and a mangy camel comes among them it gives them mange?" God’s messenger replied,“Who infected the first one?" Bukhari transmitted it. * The comparison is used to indicate the clearness of their skin.