It is narrated from Hazrat Aisha that during i'tikaf, due to some need, I would enter the house, and if there was a sick person there, I would inquire about his well-being merely in passing. The Prophet (peace be upon him) would be in i'tikaf and would extend his head out from the mosque, and I would comb it. And the Prophet (peace be upon him) would not enter the house without necessity.