Abu Huraira reported Allah's Messenger (ﷺ) as saying: There is no infection, no safar, no hama. A desert Arab said: Allah's 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?

Abu Huraira reported Allah's Messenger (ﷺ) as saying: There is no infection, no safar, no hama. A desert Arab said: Allah's 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?

حَدَّثَنِي أَبُو الطَّاهِرِ، وَحَرْمَلَةُ بْنُ يَحْيَى، - وَاللَّفْظُ لأَبِي الطَّاهِرِ - قَالاَ أَخْبَرَنَا ابْنُ وَهْبٍ، أَخْبَرَنِي يُونُسُ، قَالَ ابْنُ شِهَابٍ فَحَدَّثَنِي أَبُو سَلَمَةَ بْنُ عَبْدِ الرَّحْمَنِ، عَنْ أَبِي، هُرَيْرَةَ حِينَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ لاَ عَدْوَى وَلاَ صَفَرَ وَلاَ هَامَةَ ‏"‏ ‏.‏ فَقَالَ أَعْرَابِيٌّ يَا رَسُولَ اللَّهِ فَمَا بَالُ الإِبِلِ تَكُونُ فِي الرَّمْلِ كَأَنَّهَا الظِّبَاءُ فَيَجِيءُ الْبَعِيرُ الأَجْرَبُ فَيَدْخُلُ فِيهَا فَيُجْرِبُهَا كُلَّهَا قَالَ ‏"‏ فَمَنْ أَعْدَى الأَوَّلَ ‏"‏ ‏.‏