Yahya related to me from Malik from Abd ar-Rahman ibn al-Qasimfrom his father from A'isha umm al-muminin that Safiyya bint Huyybegan menstruating and so she mentioned it to the Messenger of Allah,may Allah bless him and grant him peace, and he asked, "Will she delayus?" and he was told, "She has already done the tawaf al-ifada," andhe said, "Then she will not delay us. "
USC-MSA web (English) reference: Book 20, Hadith 234
Arabic reference: Book 20, Hadith 932