It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: The month is (29) days. Then, to explain, he struck one hand on the other twice and on the third time folded his thumb. In another narration: When people mentioned this to Sayyida Aisha (may Allah be pleased with her), she said: May Allah forgive Abu Abdur Rahman, Sayyiduna Ibn Umar (may Allah be pleased with him), he made a mistake. The real matter was that the Messenger of Allah (peace and blessings be upon him) had separated himself from his wives for a month, and on the (29th) day he came down (from the upper room). People said to him (peace and blessings be upon him): You have come down on the twenty-ninth day (even though you had separated for a month)? He (peace and blessings be upon him) said: Indeed, this month is (29) days.