Hazrat Abdur Rahman bin Thabit bin Samit narrates from his noble father, and he from his grandfather, that the Messenger of Allah (peace be upon him) prayed in the mosque of Banu Abdul Ashhal. The Prophet (peace be upon him) had a sheet with which he was wrapped, and he would place his hands over it. This sheet protected the Prophet (peace be upon him) from the coolness of the pebbles.