“Abu ‘Abd Allah (a.s.), has said, ‘If one becomes ill for three days and does not inform anyone about it, Allah, the Majestic, the Glorious, changes his flesh into a better flesh, his blood into a better blood, his skin into a better skin and his hair into better hair.’ I then asked, ’May Allah keep my soul in the service of your cause, how does He do it?’ He said, ‘He changes it into flesh, blood, hair and skin which has not committed any sin.”’