“The Messenger of Allah ﷺ used to perform prayer on a Khumrah.”  

عَنْ عَبْدِ اللَّهِ بْنِ شَدَّادٍ حَدَّثَتْنِي مَيْمُونَةُ زَوْجُ النَّبِيِّ ﷺ قَالَتْ كَانَ رَسُولُ اللَّهِ ﷺ يُصَلِّي عَلَى الْخُمْرَةِ  

“The Messenger of Allah ﷺ performed prayer on a reed mat.”  

صَلَّى رَسُولُ اللَّهِ ﷺ عَلَى حَصِيرٍ  

“When Ibn ‘Abbas was in Basrah, he performed prayer on his rug, then he told his companions that the Messenger of Allah ﷺ used to perform prayer on his rug.”  

أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يُصَلِّي عَلَى بِسَاطِهِ