When it is very hot, say (the noon prayer) when the extreme heat passes away, for intensity of heat is from the exhalation of Hell.  

أَنَّهُ قَالَ إِنَّ رَسُولَ اللَّهِ ﷺ قَالَ إِذَا اشْتَدَّ الْحَرُّ فَأَبْرِدُوا بِالصَّلاَةِ فَإِنَّ شِدَّةَ الْحَرِّ مِنْ فَيْحِ جَهَنَّمَ  

Another hadith like this has been transmitted by Abu Huraira.  

قَالَ رَسُولُ اللَّهِ ﷺ بِمِثْلِهِ سَوَاءً  

The Messenger of Allah ﷺ said: When it is a hot day, (delay) the prayer till the extreme heat passes away, for the intensity of heat is from the exhalation of Hell. Abu Huraira reported that the Messenger of Allah ﷺ said: Refrain from saying (the noon prayer) till the extreme heat passes away, for the Intensity of heat is from the exhalation of Hell. Abu Huraira narrated this hadith from the Messenger of Allah (may peace be up on him) by another chain of transmitters.  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ إِذَا كَانَ الْيَوْمُ الْحَارُّ فَأَبْرِدُوا بِالصَّلاَةِ فَإِنَّ شِدَّةَ الْحَرِّ مِنْ فَيْحِ جَهَنَّمَ قَالَ عَمْرٌو وَحَدَّثَنِي أَبُو يُونُسَ عَنْ أَبِي هُرَيْرَةَ أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ أَبْرِدُوا عَنِ الصَّلاَةِ فَإِنَّ شِدَّةَ الْحَرِّ مِنْ فَيْحِ جَهَنَّمَ قَالَ عَمْرٌو وَحَدَّثَنِي ابْنُ شِهَابٍ عَنِ ابْنِ الْمُسَيَّبِ وَأَبِي سَلَمَةَ عَنْ أَبِي هُرَيْرَةَ عَنْ رَسُولِ اللَّهِ ﷺ بِنَحْوِ ذَلِكَ  

This heat is from the exhalation of Hell-fire, so delay the prayer till it is cool.  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ إِنَّ هَذَا الْحَرَّ مِنْ فَيْحِ جَهَنَّمَ فَأَبْرِدُوا بِالصَّلاَةِ  

This is what Abu Huraira narrated to us from the Prophet and he transmitted some ahadith-one of them was that the Messenger of Allah ﷺ said: Let the heat become less severe before prayer, for the intensity of heat is from the exhalation of Hell.  

عَنْ رَسُولِ اللَّهِ ﷺ فَذَكَرَ أَحَادِيثَ مِنْهَا وَقَالَ رَسُولُ اللَّهِ ﷺ أَبْرِدُوا عَنِ الْحَرِّ فِي الصَّلاَةِ فَإِنَّ شِدَّةَ الْحَرِّ مِنْ فَيْحِ جَهَنَّمَ  

The Mu'adhdbin (the announcer of the hour of prayer) of the Messenger of Allah ﷺ called for the noon prayer. Upon this the Messenger of Allah ﷺ said: Let it cool down, let it cool down, or he said: Wait, wait for the intensity of heat is from the exhalation of Hell. When the heat is intense, delay the prayer till it becomes cooler. Abu Dharr said: (We waited) till we saw the shadow of the mounds.  

أَذَّنَ مُؤَذِّنُ رَسُولِ اللَّهِ ﷺ بِالظُّهْرِ فَقَالَ النَّبِيُّ ﷺ أَبْرِدْ أَبْرِدْ أَوْ قَالَ انْتَظِرِ انْتَظِرْ وَقَالَ إِنَّ شِدَّةَ الْحَرِّ مِنْ فَيْحِ جَهَنَّمَ فَإِذَا اشْتَدَّ الْحَرُّ فَأَبْرِدُوا عَنِ الصَّلاَةِ قَالَ أَبُو ذَرٍّ حَتَّى رَأَيْنَا فَىْءَ التُّلُولِ  

The Messenger of Allah ﷺ said: The Fire made a complaint before the Lord saying." O Lord, some parts of mine have consumed the others." So it was allowed to take two exhalations, one exhalation in winter and the other exhalation in summer. That is why you find extreme heat (in summer) and extreme cold (in winter).  

قَالَ رَسُولُ اللَّهِ ﷺ اشْتَكَتِ النَّارُ إِلَى رَبِّهَا فَقَالَتْ يَا رَبِّ أَكَلَ بَعْضِي بَعْضًا فَأَذِنَ لَهَا بِنَفَسَيْنِ نَفَسٍ فِي الشِّتَاءِ وَنَفَسٍ فِي الصَّيْفِ فَهُوَ أَشَدُّ مَا تَجِدُونَ مِنَ الْحَرِّ وَأَشَدُّ مَا تَجِدُونَ مِنَ الزَّمْهَرِيرِ  

The Messenger of Allah ﷺ said: When it is hot, make delay (in the noon prayer) till it cools down, for the intensity of beat is from the Exhalation of Hell; and he also mentioned that Hellfire complained to the Lord (about the congested atmosphere) and so it was permitted to take two exhalations during the whole year, one exhalation during the winter and one exhalation during the summer.  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ إِذَا كَانَ الْحَرُّ فَأَبْرِدُوا عَنِ الصَّلاَةِ فَإِنَّ شِدَّةَ الْحَرِّ مِنْ فَيْحِ جَهَنَّمَ وَذَكَرَ أَنَّ النَّارَ اشْتَكَتْ إِلَى رَبِّهَا فَأَذِنَ لَهَا فِي كُلِّ عَامٍ بِنَفَسَيْنِ نَفَسٍ فِي الشِّتَاءِ وَنَفَسٍ فِي الصَّيْفِ  

The Fire said to the Lord: O Lord! some parts of mine have consumed the others, so allow me to exhale (in order to find some relief from this congestion). It was granted permission to take two exhalations, one exhalation during the winter and the other exhalation during the summer So whatever you perceive in the form of intense cold or hurting cold is from the exhalation of Hell. And whatever you perceive in the form of extreme heat or intense beat is from the exhalation of Hell.  

عَنْ رَسُولِ اللَّهِ ﷺ قَالَ قَالَتِ النَّارُ رَبِّ أَكَلَ بَعْضِي بَعْضًا فَأْذَنْ لِي أَتَنَفَّسْ فَأَذِنَ لَهَا بِنَفَسَيْنِ نَفَسٍ فِي الشِّتَاءِ وَنَفَسٍ فِي الصَّيْفِ فَمَا وَجَدْتُمْ مِنْ بَرْدٍ أَوْ زَمْهَرِيرٍ فَمِنْ نَفَسِ جَهَنَّمَ وَمَا وَجَدْتُمْ مِنْ حَرٍّ أَوْ حَرُورٍ فَمِنْ نَفَسِ جَهَنَّمَ