حَدَّثَنَا أَبُو سَعِيدٍ حَدَّثَنَا زَائِدَةُ حَدَّثَنَا سِمَاكٌ عَنْ عِكْرِمَةَ عَنْ ابْنِ عَبَّاسٍ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ لَا عَدْوَى وَلَا طِيَرَةَ وَلَا صَفَرَ وَلَا هَامَ فَذَكَرَ سِمَاكٌ أَنَّ الصَّفَرَ دَابَّةٌ تَكُونُ فِي بَطْنِ الْإِنْسَانِ فَقَالَ رَجُلٌ يَا رَسُولَ اللَّهِ تَكُونُ فِي الْإِبِلِ الْجَرِبَةُ فِي الْمِائَةِ فَتُجْرِبُهَا فَقَالَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَمَنْ أَعْدَى الْأَوَّلَ
مسند امام احمد بن حنبل · Hadith 2425
It was narrated from Ibn 'Abbas (RA) that the Messenger of Allah (PBUH) said: "No 'adioa [transmission of infectious disease without the permission of Allah], no tiyarah [superstitious belief in bird omens], no Safar and no ham [refers to a Jahili Arab tradition described variously as: a worm that infests the grave of a murder victim until he is avenged; an owl; or the bones of a dead person turned into a bird that could fly]." Simak said that (the word) Safar referred to a worm in a person's stomach. A man said: O Messenger of Allah, there may be one mangy camel in a hundred, and it transfers the disease to them. The Prophet (PBUH) said: "Then who infected the first one?"
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020