It wasnarrated that 'Aishah said:
"I used to enter the house torelievemyself, and there was a sick person there, and I only inquiredafterhim as I was passing through." She said: "And the Messenger ofAllah (ﷺ) would not enter the house except to relieve himself, thenthey were observing I'tikaf." (FR)
English reference (FR): Vol. 1, Book 7, Hadith 1776 (FR)
Arabic reference (FR): Book 7, Hadith 1848 (FR)