Sahih Bukhari
Menstrual Periods
Volume: 001 / Book Number: 006 / Hadith Number: 325
Narrated 'Aisha:
(the wife of the Prophet) I told Allah's Apostle that Safiya bint Huyai had got her menses. He said, "She will probably delay us. Did she perform Tawaf (Al-Ifada) with you?" We replied, "Yes." On that the Prophet told her to depart.