[Machine] He said, "O Messenger of Allah, what is the reward for having a fever?" He said, "Good deeds flow to the one who has a fever as long as his limbs are trembling or sweat is pouring forth." Ubay said, "O Allah, I ask You for a fever that does not prevent me from going out in Your path, or going to Your house, or going to the mosque of Your Prophet." He was never touched by a fever except that he had a fever.  

أَنَّهُ قَالَ يَا رَسُولَ اللهِ مَا جَزَاءُ الْحُمَّى؟ قَالَ «تَجْرِي الْحَسَنَاتُ عَلَى صَاحِبِهَا مَا اخْتُلِجَ عَلَيْهِ قَدَمٌ أَوْ ضُرِبَ عَلَيْهِ عِرْقٌ» قَالَ أُبَيٌّ «اللهُمَّ إِنِّي أَسْأَلُكَ حُمَّى لَا تَمْنَعُنِي خُرُوجًا فِي سَبِيلِكَ وَلَا خُرُوجًا إِلَى بَيْتِكَ وَلَا مَسْجِدِ نَبِيِّكَ» قَالَ فَلَمْ يُمْسِ أُبَيٌّ قَطُّ إِلَّا وَبِهِ حُمَّى