Once, Imam Sufyan said: Kathir bin Kathir narrated to me through a transmitter who heard from his grandfather, he says: I saw the Messenger of Allah, peace and blessings be upon him, praying near the door of Banu Sahm. People were passing in front of him, and there was no barrier (sutrah) between the Prophet, peace and blessings be upon him, and the Ka'bah.