Zuhr prayers

Bismillah Walhamdulillah Was Salaatu Was Salaam 'ala Rasulillah

As-Salaam Alaikum Wa-Rahmatullahi Wa-Barakatuhu

Narrated Anas bin Malik (Radi-Allahu 'anhu):

When we offered the Zuhr prayers behind Allah's Apostle (Sallallahu 'Alaihi
Wa Sallam) we used to prostrate on our clothes to protect ourselves from
the heat.

Bukhari Vol. 1 : No. 517