Abu Hurairah (RA) reported Allahs Messenger ﷺ as saying: There is no infection, no safar, no hama. A desert Arab said: Allahs Messenger, how is it that when the camel is in the sand it is like a deer-then a camel afflicted with scab mixes with it and it is affected by sub? He (the Holy Prophet) said: Who infected the first one?