It is narrated from Sayyiduna Harith bin Abdullah that I asked Sayyiduna Umar about the ruling of a woman who was performing Tawaf of the Ka'bah and then her menstruation began. He replied that her last act should be the Tawaf of the Ka'bah. Sayyiduna Harith said that the Prophet (peace be upon him) had informed me of this very issue. Sayyiduna Umar rebuked him harshly and said, "You are asking me about something regarding which you have already asked the Prophet (peace be upon him), but I cannot go against the instruction of the Prophet (peace be upon him)."