We used to say (the noonprayer) with the Messenger of Allah ﷺ in the intense heat, but when someone amongst us found it hard to place his forehead on the ground, he spread his cloth and prostrated on it. (Using translation from Muslim 620)   

كُنَّا إِذَا صَلَّيْنَا مَعَ النَّبِيِّ ﷺ فَلَمْ يَسْتَطِعْ أَحَدُنَا أَنْ يُمَكِّنَ جَبْهَتَهُ مِنَ الْأَرْضِ مِنْ شِدَّةِ الْحَرِّ طَرَحَ ثَوْبَهُ ثُمَّ سَجَدَ عَلَيْهِ  

[Machine] When we used to pray with the Prophet, ﷺ , one of us would place the edge of the garment in the place of prostration because of the intensity of the heat.  

كُنَّا إِذَا صَلَّيْنَا مَعَ النَّبِيِّ ﷺ فَيَضَعُ أَحَدُنَا طَرَفَ الثَّوْبِ مِنْ شِدَّةِ الْحَرِّ مَكَانَ السُّجُودِ  

we used to pray along with the Messenger of Allah ﷺ in intense heat. When any of us could not rest his face on bare ground while prostrating due to intense heat he spread his cloth and would prostrate on it. (Using translation from Abū Dāʾūd 660)   

كُنَّا نُصَلِّي مَعَ النَّبِيِّ ﷺ فِي شِدَّةِ الْحَرِّ فَإِذَا لَمْ يَسْتَطِعْ أَحَدُنَا أَنْ يُمَكِّنَ جَبْهَتَهُ مِنَ الْأَرْضِ بَسَطَ ثَوْبَهُ فَسَجَدَ عَلَيْهِ  

[Machine] Abu Amr Al-Adibi informed us that Abu Bakr Al-Isma'iliy informed us that Abu Ya'la narrated to us, who narrated from Shurayh bin Yunus, who narrated from Bishr bin Al-Mufaddal, who mentioned its chain of narrators except that he said in its text: "We used to pray with the Messenger of Allah ﷺ in extreme heat, and one of us would take a handful of pebbles in his hand, and when it cooled down, he would place it on the ground and prostrate on it." Sheikh Abu Bakr said, "These two hadiths were narrated by Bishr bin Al-Mufaddal, one of them regarding the garment and the other regarding the pebbles."  

أَخْبَرَنَا أَبُو عَمْرٍو الْأَدِيبُ أنبأ أَبُو بَكْرٍ الْإِسْمَاعِيلِيُّ أنبأ أَبُو يَعْلَى ثنا شُرَيْحُ بْنُ يُونُسَ ثنا بِشْرُ بْنُ الْمُفَضَّلِ فَذَكَرَ إِسْنَادَهُ إِلَّا أَنَّهُ قَالَ فِي مَتْنِهِ كُنَّا نُصَلِّي مَعَ رَسُولِ اللهِ ﷺ فِي شِدَّةِ الْحَرِّ فَيَأْخُذُ أَحَدُنَا الْحَصْبَاءَ فِي يَدِهِ فَإِذَا بَرَدَ وَضَعَهُ وَسَجَدَ عَلَيْهِ قَالَ الشَّيْخُ أَبُو بَكْرٍ هَذَانِ حَدِيثَانِ رَوَاهُمَا بِشْرُ بْنُ الْمُفَضَّلِ أَحَدُهُمَا فِي الثَّوْبِ وَالْآخَرُ فِي الْحَصْبَاءِ وَقَدْ  

[Machine] The companions of the Messenger of Allah ﷺ used to prostrate with their hands on their clothes. And a man among them would prostrate on his turban. The first narration suggests that what is meant is a separate garment from it, and this suggests that the man intended to prostrate on his turban and forehead. However, it is more cautious to prostrate for the purpose of prayer. And with Allah is the success.  

كَانَ أَصْحَابُ رَسُولِ اللهِ ﷺ يَسْجُدُونَ وَأَيْدِيهِمْ فِي ثِيَابِهِمْ وَيَسْجُدُ الرَّجُلُ مِنْهُمْ عَلَى عِمَامَتِهِ وَالْحَدِيثُ الْأَوَّلُ يَحْتَمِلُ أَنْ يَكُونَ الْمُرَادُ بِهِ ثَوْبًا مُنْفَصِلًا عَنْهُ وَهَذَا يَحْتَمِلُ أَنْ يَكُونَ أَرَادَ يَسْجُدُ الرَّجُلُ مِنْهُمْ عَلَى عِمَامَتِهِ وَجَبْهَتِهِ وَالِاحْتِيَاطُ لِغَرَضِ السُّجُودِ أَوْلَى وَبِاللهِ التَّوْفِيقُ