Bismillah Walhamdulillah Was Salaatu Was Salaam ‘ala Rasulillah
Narrated ‘Aisha (Radi-Allahu ‘anha):

Whenever Allah’s Apostle (Sallallahu ‘Alaihi Wa Sallam) paid a visit to a patient, or a patient was brought to him, he used to invoke Allah, saying, “Take away the disease, O the Lord of the people! Cure him as You are the One Who cures. There is no cure but Yours, a cure that leaves no disease.”

Bukhari Vol. 7 : No. 579