Yahya related to me from Malik from Hisham ibn Urwa from Fatima bint al-Mundhir that whenever a woman who had a fever, was brought to Asma bint Abi Bakr, she made dua for her and took water and poured it inside her collar. She said, "The Messenger of Allah ﷺ ordered us to cool it with water."  

أَنَّ أَسْمَاءَ بِنْتَ أَبِي بَكْرٍ كَانَتْ إِذَا أُتِيَتْ بِالْمَرْأَةِ وَقَدْ حُمَّتْ تَدْعُو لَهَا أَخَذَتِ الْمَاءَ فَصَبَّتْهُ بَيْنَهَا وَبَيْنَ جَيْبِهَا وَقَالَتْ إِنَّ رَسُولَ اللَّهِ ﷺ كَانَ يَأْمُرُنَا أَنْ نُبْرِدَهَا بِالْمَاءِ  

[Machine] "When a woman used to come to her (Aisha) to seek her supplication, she poured water between her and her garment, and said: 'The Messenger of Allah ﷺ ordered us to cool it with water, as it is from the heat of Hellfire.'"  

أَنَّهَا كَانَتْ إِذَا أُتِيَتْ بِالْمَرْأَةِ لِتَدْعُوَ لَهَا صَبَّتِ الْمَاءَ بَيْنَهَا وَبَيْنَ جَيْبِهَا وَقَالَتْ إِنَّ رَسُولَ اللهِ ﷺ أَمَرَنَا أَنْ نُبْرِدَهَا بِالْمَاءِ وَقَالَ إِنَّهَا مِنْ فَيْحِ جَهَنَّمَ  

[Machine] "When a woman used to be brought to the Prophet ﷺ, she would be given water to perform ablution, which she would pour on herself and between her sides. She would say, 'The Messenger of Allah ﷺ commanded us to cool ourselves with water, for it is from the heat of Hellfire.'"  

أَنَّهَا كَانَتْ إِذَا أُتِيَتْ بِالْمَرْأَةِ قَدْ حُمَّتْ دَعَتْ بِالْمَاءِ فَسَكَبَتْهُ عَلَيْهِ وَبَيْنَ جَنْبَيْهَا وَقَالَتْ إِنَّ رَسُولَ اللهِ ﷺ أَمَرَنَا أَنْ نُبَرِّدَ بِالْمَاءِ وَقَالَ «إِنَّهَا مِنْ فَحِيحِ جَهَنَّمَ»  

[Machine] "When Asmaa was brought a woman, she would pour water between herself and her side and say: 'Indeed, the Messenger of Allah ﷺ commanded us to cool it with water.'"  

أَنَّ أَسْمَاءَ كَانَتْ إِذَا أُتِيَتْ بِالْمَرْأَةِ قَدْ حُمَّتْ تَدْعُو لَهَا أَخَذَتِ الْمَاءَ فَتَصُبُّ بَيْنَهَا وَبَيْنَ جَنْبِهَا وَقَالَتْ «إِنَّ رَسُولَ اللهِ ﷺ كَانَ يَأْمُرُنَا أَنْ نُبْرِدَهَا بِالْمَاءِ»  

[Machine] "That the name of the daughter of Abu Bakr used to be brought to the menstruating woman, so she would invoke blessings upon her and she would take water and pour it between her and her side, and she said, 'Verily, the Messenger of Allah ﷺ commanded her to cool it with water.'"  

أَنَّ أَسْمَاءَ بِنْتِ أَبِي بَكْرٍ كَانَتْ تُؤْتَى بِالْمَرْأَةِ الْمَوْعُوكَةِ قَدْ حُمَّتْ تَدْعُو لَهَا أَخَذْتِ الْمَاءَ فَصَبَّتْهُ بَيْنَهَا وَبَيْنَ جَنْبِهَا وَقَالَتْ «إِنَّ رَسُولَ اللهِ ﷺ أَمَرَهَا أَنْ تُبْرِدَهَا بِالْمَاءِ»  

Whenever a lady suffering from fever was brought to Asma' bint Abu Bakr, she used to invoke Allah for her and then sprinkle some water on her body, at the chest and say, "Messenger of Allah ﷺ used to order us to abate fever with water." (Using translation from Bukhārī 5724)   

أَنَّ أَسْمَاءَ بِنْتَ أَبِي بَكْرٍ كَانَتْ إِذَا أُتِيَتْ بِالْمَرْأَةِ قَدْ حُمَّتْ أَخَذَتْ الْمَاءَ فَنَضَحَتْ بَيْنَهَا وَبَيْنَ جَيْبِهَا وَقَالَتْ إِنَّ رَسُولَ اللهِ ﷺ كَانَ يَأْمُرُنَا أَنْ نُبْرِدَهَا بِالْمَاءِ