Sahih Bukhari

Hadith #379

Narrates `Abdullah bin Shaddad:Maimuna said, ""Allah's Messenger (ﷺ) was praying while I was in my menses, sitting beside him and sometimes his clothes would touch me during his prostration."" Maimuna added, ""He prayed on a Khumra (a small mat sufficient just for the face and the hands while prostrating during prayers)