Messenger of Allah ﷺ said, 'There is no 'Adwa (no disease is conveyed from the sick to the healthy without Allah's permission), nor Safar, nor Hama." A bedouin stood up and said, "Then what about my camels? They are like deer on the sand, but when a mangy camel comes and mixes with them, they all get infected with mangy." The Prophet ﷺ said, "Then who conveyed the (mange) disease to the first one?"  

إِنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ عَدْوَى وَلاَ صَفَرَ وَلاَ هَامَةَ فَقَالَ أَعْرَابِيٌّ يَا رَسُولَ اللَّهِ فَمَا بَالُ إِبِلِي تَكُونُ فِي الرَّمْلِ كَأَنَّهَا الظِّبَاءُ فَيَأْتِي الْبَعِيرُ الأَجْرَبُ فَيَدْخُلُ بَيْنَهَا فَيُجْرِبُهَا فَقَالَ فَمَنْ أَعْدَى الأَوَّلَ رَوَاهُ الزُّهْرِيُّ عَنْ أَبِي سَلَمَةَ وَسِنَانِ بْنِ أَبِي سِنَانٍ  

The Prophet ﷺ said, 'No 'Adwa (i.e. no contagious disease is conveyed to others without Allah's permission); nor (any evil omen in the month of) Safar; nor Hama" A bedouin said, "O Messenger of Allah ﷺ! What about the camels which, when on the sand (desert) look like deers, but when a mangy camel mixes with them they all get infected with mange?" On that Allah s Apostle said, "Then who conveyed the (mange) disease to the first (mangy) camel?"  

قَالَ النَّبِيُّ ﷺ لاَ عَدْوَى وَلاَ صَفَرَ وَلاَ هَامَةَ فَقَالَ أَعْرَابِيٌّ يَا رَسُولَ اللَّهِ فَمَا بَالُ الإِبِلِ تَكُونُ فِي الرَّمْلِ كَأَنَّهَا الظِّبَاءُ فَيُخَالِطُهَا الْبَعِيرُ الأَجْرَبُ فَيُجْرِبُهَا فَقَالَ رَسُولُ اللَّهِ ﷺ فَمَنْ أَعْدَى الأَوَّلَ  

The Prophet ﷺ said, 'No 'Adwa (i.e. no contagious disease is conveyed to others without Allah's permission); nor (any evil omen in the month of) Safar; nor Hama" A bedouin said, "O Messenger of Allah ﷺ! What about the camels which, when on the sand (desert) look like deers, but when a mangy camel mixes with them they all get infected with mange?" On that Allah s Apostle said, "Then who conveyed the (mange) disease to the first (mangy) camel?" (Using translation from Bukhārī 5770)  

قَالَ رَسُولُ اللهِ ﷺ لَا عَدْوَى وَلَا صَفَرَ وَلَا هَامَةَ قَالَ أَعْرَابِيٌّ فَمَا بَالُ الْإِبِلِ تَكُونُ فِي الرَّمْلِ كَأَنَّهَا الظِّبَاءُ فَيُخَالِطُهَا الْبَعِيرُ الْأَجْرَبُ فَيُجْرِبُهَا؟ فَقَالَ النَّبِيُّ ﷺ فَمَنْ كَانَ أَعْدَى الْأَوَّلَ؟  

There is no infection, no safar, no hama. A desert Arab said: Messenger of Allah, 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? Note: The majority of scholars interpret this to mean that these things in and of themselves do not transmit or cause harm through supernatural or hidden means but that Allah is ultimately in control and any fearful superstition around these is false. (Using translation from Muslim 2220a)  

قَالَ رَسُولُ اللَّهِ ﷺ «لَا عَدْوَى وَلَا صَفَرَ وَلَا هَامَةَ» فَقَالَ الْأَعْرَابِيُّ يَا رَسُولَ اللَّهِ فَمَا بَالُ الْإِبِلِ تَكُونُ فِي الرَّمْلِ كَأَنَّهَا الظِّبَاءُ فَيَجِيءُ الْبَعِيرُ الْأَجْرَبُ فَيَدْخُلُ فِيهَا فَيُجْرِبُهَا؟ قَالَ «فَمَنْ أَعْدَى الْأَوَّلَ؟ »  

The Prophet ﷺ said, 'No 'Adwa (i.e. no contagious disease is conveyed to others without Allah's permission); nor (any evil omen in the month of) Safar; nor Hama" A bedouin said, "O Messenger of Allah ﷺ! What about the camels which, when on the sand (desert) look like deers, but when a mangy camel mixes with them they all get infected with mange?" On that Allah s Apostle said, "Then who conveyed the (mange) disease to the first (mangy) camel?" (Using translation from Bukhārī 5770)   

قَالَ رَسُولُ اللهِ ﷺ «لَا عَدْوَى وَلَا هَامَةَ وَلَا صَفَرَ» قَالَ أَعْرَابِيٌّ يَا رَسُولَ اللهِ فَمَا بَالُ الْإِبِلِ تَكُونُ فِي الرَّمَلِ كَأَنَّهَا الظِّبَاءُ يَجِيءُ الْبَعِيرُ الْأَجْرَبُ فَيُجْرِبُهَا كُلَّهَا؟ قَالَ «فَمَنْ أَعْدَى الْأَوَّلَ»  

The Prophet ﷺ said, 'No 'Adwa (i.e. no contagious disease is conveyed to others without Allah's permission); nor (any evil omen in the month of) Safar; nor Hama" A bedouin said, "O Messenger of Allah ﷺ! What about the camels which, when on the sand (desert) look like deers, but when a mangy camel mixes with them they all get infected with mange?" On that Allah s Apostle said, "Then who conveyed the (mange) disease to the first (mangy) camel?" (Using translation from Bukhārī 5770)  

عَنِ النَّبِيِّ ﷺ قَالَ «لَا عَدْوَى وَلَا هَامَةَ وَلَا صَفَرَ» فَقَالَ الْأَعْرَابِيُّ فَمَا بَالُ الْإِبِلِ تَكُونُ فِي الرَّمَلِ كَأَنَّهَا الظِّبَاءُ فَيُخَالِطُهَا الْبَعِيرُ الْأَجْرَبُ فَيُجْرِبُهَا؟ قَالَ النَّبِيُّ ﷺ «فَمَنْ أَعْدَى الْأَوَّلَ؟»  

[Machine] The Messenger of Allah ﷺ said, "There is no contagious disease." Then, a man from the Bedouins stood up and said, "O Messenger of Allah, what do you say about camels that are in the desert, resembling deer, and then a pure camel comes and mixes with them all?" The Messenger of Allah ﷺ said, "Then who caused the first one to be infected?"  

قَالَ رَسُولُ اللهِ ﷺ لَا عَدْوَى فَقَامَ رَجُلٌ مِنَ الْأَعْرَابِ فَقَالَ يَا رَسُولَ اللهِ أَفَرَأَيْتَ الْإِبِلَ تَكُونُ فِي الرِّمَالِ أَمْثَالَ الظِّبَاءِ فَيَأْتِيهَا الْبَعِيرُ الْأَجْرَبُ فَيُجْرِبُهَا جَمِيعًا قَالَ رَسُولُ اللهِ ﷺ فَمَنْ أَعْدَى الْأَوَّلَ؟  

"عَنْ أَبِي سَلَمَةَ، عَنْ أَبِي هُرَيْرَةَ قَالَ: قَالَ رَسُولُ اللهِ ﷺ : لا عَدْوى، ولا صَفَرَ، وَلا طِيرَة، وَلاَ هَامَة، فَقَالَ أَعْرَابِيٌ: يَا رَسُولَ اللهِ! فَمَا بَالُ الإبِلِ تَكُونُ فِي الرَّمْلِ كَأَنَّهَا الظِبَاءُ، فَيَجيءُ إِلَيْه الْبَعِيرُ الأَجْرَبُ فَيَدْخُلُ فيِهَا فَتَجْرَبُ كُلُّهَا قَالَ: فَمَنْ أَعْدَى الأَوَّلَ".