وَعَنْ عَطَاءٍ، عَنْ أَبِي هُرَيْرَةَ قَالَ‏:‏ مَا مِنْ مَرَضٍ يُصِيبُنِي أَحَبَّ إِلَيَّ مِنَ الْحُمَّى، لأَنَّهَا تَدْخُلُ فِي كُلِّ عُضْوٍ مِنِّي، وَإِنَّ اللَّهَ عَزَّ وَجَلَّ يُعْطِي كُلَّ عُضْوٍ قِسْطَهُ مِنَ الأَجْرِ‏.‏

Abu Hurayrah said that he did not like any illness more than fever because it went into each of his limbs. And, Allah grants each limb its share of reward.