Sahih Bukhari Volume 002, Book 026, Hadith Number 823.
Narated By 'Aisha : Safiya got her menses on the night of Nafr (departure from Hajj), and she said, "I see that I will detain you." The Prophet said, "Aqra Halqa! Did she perform the Tawaf on the Day of Nahr (slaughtering)?" Somebody replied in the affirmative. He said, "Then depart." (Different narrators mentioned that) 'Aisha said, "We set out with Allah's Apostle (from Medina) with the intention of performing Hajj only. When we reached Mecca, he ordered us to finish the Ihram. When it was the night of Nafr (departure), Safiya bint Huyay got her menses. The Prophet said, "Halqa Aqra! I think that she will detain you," and added, "Did you perform the Tawaf (Al-Ifada) on the Day of Nahr (slaughtering)?" She replied, "Yes." He said, "Then depart." I said, "O Allah's Apostle! I have not (done the Umra)." He replied, "Perform 'Umra from Tan'im." My brother went with me and we came across the Prophet in the last part of the night. He said, "Wait at such and such a place."