Sahih Bukhari
Patients
Volume: 007 / Book Number: 070 / Hadith Number: 579
Narrated 'Aisha:
Whenever Allah's Apostle 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."