The Book of Pilgrimage (Kitab Al-Hajj)
Muslim :: Book 7 : Hadith 3063
'A'isha (Allah be pleased with her) reported: We feared that Safiyyah might have entered the period of menses before performing Tawaf Ifada. Allah's Messenger (may peace be upon him) came to us and said: Is Safiyyah going to detain us? Thereupon we said: She has performed Tawaf Ifada. He (the Holy Prophet) said: Then there is no detention (for us) now.