Sayyidah Aishah (may Allah be pleased with her) said: Sayyidah Safiyyah bint Huyayy (may Allah be pleased with her) began menstruating after the ifadah. I mentioned this to the Prophet (peace and blessings be upon him), and he (peace and blessings be upon him) said: "Is she going to hold us back?" I said: She performed the ifadah in a state of purity and began menstruating afterwards. He (peace and blessings be upon him) said: "Then let her depart."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 9752