Narrated Anas bin Malik: We used to pray with the Prophet and some of us used to place the ends of their clothes at the place of prostration because of scorching heat.
Hadith ReferenceSahih Bukhari / The Book of As-Salat (The Prayer) / Hadith: 385
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة