The Messenger of Allah (ﷺ) as saying: Feed the hungry, visit the sick and free the captive. Sufyan said: al-'ani means captive.
Sunan Abi Dawud Book 21, Hadith 17
← Previous Hadith That her father said: I had a complaint at Mecca. The Messenger of Allah (ﷺ) came to pay a sick-visit to me. He put his hand on my forehead, wiped my chest and belly, and then said: O Allah! heal up Sa'd and complete his immigration.

Sunan Abi Dawud Book 21, Hadith 16 Next Hadith → The Prophet (ﷺ) said: If anyone visits a sick whose time (of death) has not come, and says with him seven times: I ask Allah, the Mighty, the Lord of the mighty Throne, to cure you, Allah will cure him from that disease.

Sunan Abi Dawud Book 21, Hadith 18