Abu Hurayra said, "A bedouin came and the Prophet, may Allah bless him and grant him peace, asked, 'Has Umm Mildam (fever) got hold of you?' 'What is Umm Mildam?' he asked. He said, 'The heat between the skin and the flesh.' The bedouin said, 'No.' He asked, 'Have you got a headache?' 'What is headache?' the man asked. He replied, 'A wind which appears in the head and beats the veins.' 'No,' he said, When he stood up, he said, 'Whoever wants to look at a man who is one of the people of the Fire,' i.e. 'let them look at that man.'"

فَقَالَ النَّبِيُّ ﷺ هَلْ أَخَذَتْكَ أُمُّ مِلْدَمٍ؟ قَالَ وَمَا أُمُّ مِلْدَمٍ؟ قَالَ حَرٌّ بَيْنَ الْجِلْدِ وَاللَّحْمِ قَالَ لاَ قَالَ فَهَلْ صُدِعْتَ؟ قَالَ وَمَا الصُّدَاعُ؟ قَالَ رِيحٌ تَعْتَرِضُ فِي الرَّأْسِ تَضْرِبُ الْعُرُوقَ قَالَ لاَ قَالَ فَلَمَّا قَامَ قَالَ مَنْ سَرَّهُ أَنْ يَنْظُرَ إِلَى رَجُلٍ مِنْ أَهْلِ النَّارِ أَيْ فَلْيَنْظُرْهُ