The Prophet ﷺ said, "In very hot weather delay the Zuhr prayer till it becomes (a bit) cooler because the severity of heat is from the raging of the Hell-fire. The Hell-fire of Hell complained to its Lord saying: O Lord! My parts are eating (destroying) one another. So Allah allowed it to take two breaths, one in the winter and the other in the summer. The breath in the summer is at the time when you feel the severest heat and the breath in the winter is at the time when you feel the severest cold." (Using translation from Bukhārī 536)   

أَنَّ رَسُولَ اللهِ ﷺ قَالَ إِذَا اشْتَدَّ الْحَرُّ فَأَبْرِدُوا بِالصَّلَاةِ فَإِنَّ شِدَّةَ الْحَرِّ مِنْ فَيْحِ جَهَنَّمَ وَاشْتَكَتِ النَّارُ إِلَى رَبِّهَا ﷻ فَقَالَتْ رَبِّ آكُلُ بَعْضِي بَعْضًا فَأَذِنَ لَهَا بِنَفَسَيْنِ نَفَسٌ فِي الشِّتَاءِ وَنَفَسٌ فِي الصَّيْفِ فَهُوَ أَشَدُّ مَا تَجِدُونَ مِنَ الْحَرِّ وَأَشَدُّ مَا تَجِدُونَ مِنَ الزَّمْهَرِيرِ  

[Machine] He said, "The most intense heat you will find is from its summer heat, and the most intense cold you will find is from its winter cold."  

أَنَّهُ قَالَ فَأَشَدُّ مَا تَجِدُونَ مِنَ الْحَرِّ فَمِنْ حَرِّهَا وَأَشَدُّ مَا تَجِدُونَ مِنَ الْبَرْدِ فَمَنْ زَمْهَرِيرِهَا  

When the heat is violent, offer (the Zuhr) prayer when it becomes fairly cool, for the violent heat comes from the bubbling over the Hell. (Using translation from Abū Dāʾūd 402)   

أَنَّ رَسُولَ اللهِ ﷺ قَالَ إِذَا اشْتَدَّ الْحَرُّ فَأَبْرِدُوا عَنِ الصَّلَاةِ قَالَ ابْنُ مَوْهَبٍ بِالصَّلَاةِ فَإِنَّ شِدَّةَ الْحَرِّ مِنْ فَيْحِ جَهَنَّمَ  

[Machine] The Messenger of Allah ﷺ said, "When it is hot, cool down from praying, for the intensity of the heat is from the breeze of Hell. And it is mentioned that the Fire complained to its Lord, so He granted it two breaths in every year: a breath in the winter and a breath in the summer."  

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

[Machine] The Messenger of Allah ﷺ said: "Cool off with the midday, for the intensity of the heat is from the breath of Hellfire."  

قَالَ رَسُولُ اللهِ ﷺ أَبْرِدُوا بِالظُّهْرِ فَإِنَّ شِدَّةَ الْحَرِّ مِنْ فَيْحِ جَهَنَّمَ  

[Machine] I heard Abu Dharr saying, "We were with the Prophet ﷺ, and the Mu'adhdhin intended to call for the Dhuhr (midday) prayer. Abu Dharr said, 'Wait a bit.' Then the Mu'adhdhin intended to call for the prayer again, and Abu Dharr said, 'Wait a bit' two or three times until we saw a white spot in the horizon. Then Abu Dharr said, 'The intensity of heat is from the heat of Hell, so when it is very hot, cool it down with prayer.' Abu Dawud said, 'He (Abu Dharr) was a Muhajir and the companion of Abu al-Hasan.'"  

سَمِعْتُ أَبَا ذَرٍّ يَقُولُ كُنَّا مَعَ النَّبِيِّ ﷺ فَأَرَادَ الْمُؤَذِّنُ أَنْ يُؤَذِّنَ الظُّهْرَ فَقَالَ أَبْرِدْ ثُمَّ أَرَادَ أَنْ يُؤَذِّنَ فَقَالَ أَبْرِدْ مَرَّتَيْنِ أَوْ ثَلَاثًا حَتَّى رَأَيْنَا فَيْءَ التُّلُولِ ثُمَّ قَالَ إِنَّ شِدَّةَ الْحَرِّ مِنْ فَيْحِ جَهَنَّمَ فَإِذَا اشْتَدَّ الْحَرُّ فَأَبْرِدُوا بِالصَّلَاةِ قَالَ أَبُو دَاوُدَ هُوَ مُهَاجِرٌ أَبُو الْحَسَنِ  

[Machine] He heard Abu Dharr say that he was with the Messenger of Allah ﷺ on a journey, and the caller to prayer called the adhan, so the Prophet ﷺ said to him, "Calm down and remember it." And Ghandar reported the same from Shu'bah.  

أَنَّهُ سَمِعَ أَبَا ذَرٍّ يَقُولُ إِنَّهُ كَانَ مَعَ رَسُولِ اللهِ ﷺ فِي سَفَرٍ فَأَذَّنَ الْمُؤَذِّنُ فَقَالَ لَهُ النَّبِيُّ ﷺ أَبْرِدْ وَذَكَرَهُ وَكَذَلِكَ قَالَهُ غُنْدَرٌ عَنْ شُعْبَةَ  

[Machine] The Prophet ﷺ called the Muadhin to give the call to the Dhuhr prayer, then he said to him, "Make it cooler, make it cooler." He also said, "Wait, wait." He said, "Indeed, the intensity of the heat is from the breath of Hell, so when it gets very hot, cool down from praying." Abu Dharr said, "We kept waiting until we saw the white mark on the horizon."  

أَذَّنَ مُؤَذِّنُ رَسُولِ اللهِ ﷺ الظُّهْرَ فَقَالَ لَهُ النَّبِيُّ ﷺ أَبْرِدْ أَبْرِدْ وَقَالَ انْتَظِرِ انْتَظِرْ وَقَالَ إِنَّ شِدَّةَ الْحَرِّ مِنْ فَيْحِ جَهَنَّمَ فَإِذَا اشْتَدَّ الْحَرُّ فَأَبْرِدُوا عَنِ الصَّلَاةِ قَالَ أَبُو ذَرٍّ حَتَّى رَأَيْنَا فَيْءَ التُّلُولِ  

[Machine] And the other one said, Bilal used to call the Adhan (Islamic call to prayer) when the sun set.  

وَقَالَ الْآخَرُ كَانَ بِلَالٌ يُؤَذِّنُ إِذَا دَحَضَتِ الشَّمْسُ  

[Machine] Bilal used to not pay attention to the call to prayer, and sometimes he would delay the call to commence the prayer. His statement was made before the sunset.  

كَانَ بِلَالٌ لَا يَحْذِمُ الْأَذَانَ وَكَانَ رُبَّمَا أَخَّرَ الْإِقَامَةَ شَيْئًا وَقَدْ مَضَى قَوْلُهُ كَانَ بِلَالٌ يُؤَذِّنُ إِذَا دَحَضَتِ الشَّمْسُ