Abdullah narrated :"The Messenger of Allah (s.a.w) was sleeping upon a mat, then he stood, and the mat had left marks on his side. We said: 'O Messenger of Allah! We said: 'O Messenger of Allah! We could get a bed for you.' He said: 'What do I have to do with the world! I am not in the world but as a rider seeking shade under a tree, then he catches his breath and leaves it

English translation · Jami' at-Tirmidhi