INSH'ALLAH, ILLNESS IS A PURIFICATION H H 920 "The Prophet, praise and peace be upon him, visited a Bedouin Arab who was ill. When he visited someone who was ill he would say: 'Have no fear. The illness is purification, if Allah wills.'" R 920 Bukhari with a chain up to ibn Abbas who related this.
907- وعنه : أنَّ النبي صلى الله عليه وآله وسلم دَخَلَ عَلَى أعْرَابِيٍّ يَعُودُهُ ، وَكَانَ إِذَا دَخَلَ عَلَى مَنْ يَعُودُهُ ، قَالَ : "لاَ بَأسَ ؛ طَهُورٌ إنْ شَاءَ اللهُ" رواه البخاري .