Narrated `Aisha:(the wife of the Prophet) The Prophet (ﷺ) used to practice I`tikaf in the last ten days of Ramadan till he died and then his wives used to practice I`tikaf after him
Book 33 · Hadith 2
صحيح البخاري
Narrated `Aisha:(the wife of the Prophet) The Prophet (ﷺ) used to practice I`tikaf in the last ten days of Ramadan till he died and then his wives used to practice I`tikaf after him