We used to pray with the Prophet ﷺ and some of us used to place the ends of their clothes at the place of prostration because of scorching heat.
كُنَّا نُصَلِّي مَعَ النَّبِيِّ ﷺ فَيَضَعُ أَحَدُنَا طَرَفَ الثَّوْبِ مِنْ شِدَّةِ الْحَرِّ فِي مَكَانِ السُّجُودِ