Yahya related to me from Malik from Abu'z Zubayr al-Makki thatAbu Maiz al-Aslami Abdullah ibn Sufyan told him that once, when he wassitting with Abdullah ibn Umar, a woman came to ask him for anopinion. She said, "I set out intending to do tawaf of the House, butthen, when I got to the gate of the Mosque, I started bleeding, so Iwent back until it had left me. Then I set out again, and then, when Igot to the gate of the mosque, I started bleeding, so I went backuntil it had left me. Then I set off again, and then, when I got tothe gate of the mosque, I started bleeding." Abdullah ibn Umar said,"That is only an impulse from Shaytan. Do ghusl, then bind yourprivate parts with a cloth and do tawaf."
USC-MSA web (English) reference: Book 20, Hadith 125
Arabic reference: Book 20, Hadith 828