When the Prophet ﷺ would enter upon a sick person, he would say: La ba/sa tahoorun in shaal-lah. ‘Never mind, may it (the sickness) be a purification, if Allah wills.’
‘Any Muslim servant who visits a sick person whose prescribed moment of death has not arrived and supplicates seven times: Asalul-lahal-AAatheem rabbal-AAarshil-AAatheem an yashfeek (7times). ‘I ask Allah The Supreme, Lord of the magnificent throne to cure you’. …he (the sick person) will be cured.’