Chapter: It is permissible to offer voluntary prayers in congregation, and to pray on hasir (palm-fiber mats), khumrah (small mats), cloth, and other pure things
Anas b. Malik reported that the Messenger of Allah ( صلی اللہ علیہ وسلم ) wits the best among people in character. On occasions, the time of prayer would come while he was in our house. He would then order to spread the mat lying under him. That was dusted and then water was sprinkled over it. The Messenger of Allah ( صلی اللہ علیہ وسلم ) then led the prayer and we stood behind him, and that mat was made of the leaves of date-palm.
Authentic