”The mitzvah of Bikur Cholim obligates the community to take care of the worldly concerns of the patient and to provide essential peace of mind.” - Shulchan Aruch Yoreh De’ah 335

“The visitor relieves the ill person of one sixtieth of his suffering.” - Leviticus Rabbah 34

“Visiting the sick has no limits - even the great must visit the humble, even one hundred times a day.” - Talmud Nedarim 39b