Narrated `Aisha: One of the mothers of the faithful believers (i.e. the wives of the Prophet ) did I`tikaf while she was having bleeding in between her periods.
Hadith ReferenceSahih Bukhari / The Book of Menses (Menstrual Periods) / Hadith: 311
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة