Sunan an-Nasa'i 738
سنن النسائي#738SahihIt was narrated from Maimunah that the Messenger of Allah (ﷺ) used to pray on a mat
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 8:51