Anas b. Malik said; the prophet (ﷺ) used to visit Umm Sulaim. Sometimes the time for prayer would come and he would pray on out carpet that was really a mat. She (Umm Sulaim) used to wash it with water.
Sunan Abi Dawud Book 2, Hadith 268
← Previous Hadith A man from the Ansar said: I am a corpulent man-and he was (actually) a fat man; I cannot pray along with you. He prepared food for him and invited him to his house. (he said) (please) pray (here) so that I may see how you pray, and then I would follow you. They (the people) washed one side of their mat. He (the prophet) then got up and prayed two Rak’ahs. Ibn al-Jarud asked Anas b. Malik: would he (the prophet) say the forenoon prayer? He replied: I did not see him offering this prayer except that day.

Sunan Abi Dawud Book 2, Hadith 267 Next Hadith → The Messenger of Allah (ﷺ) used to pray on a mat and on a tanned skin.

Sunan Abi Dawud Book 2, Hadith 269