Sahlah daughter of Suhayl had a prolonged flow of blood. She came to the Prophet ﷺ. He commanded her to take a bath for every prayer. When it became hard for her, he commanded her to combine the noon and afternoon prayers with one bath and the sunset and night prayer with one bath, and to take a bath (separately) for the dawn prayer. Abu Dawud said: Ibn 'Uyainah reported from 'Abd al-Rahman b. al-Qasim on the authority of his father, saying: A woman had a prolonged flow of blood. She asked the Prophet ﷺ. He commanded her to the same effect.  

أَنَّ سَهْلَةَ بِنْتَ سُهَيْلٍ اسْتُحِيضَتْ فَأَتَتِ النَّبِيَّ ﷺ فَأَمَرَهَا أَنْ تَغْتَسِلَ عِنْدَ كُلِّ صَلاَةٍ فَلَمَّا جَهَدَهَا ذَلِكَ أَمَرَهَا أَنْ تَجْمَعَ بَيْنَ الظُّهْرِ وَالْعَصْرِ بِغُسْلٍ وَالْمَغْرِبِ وَالْعِشَاءِ بِغُسْلٍ وَتَغْتَسِلَ لِلصُّبْحِ  

[Machine] It is only Suhailah bint Sahl, and indeed the Messenger of Allah ﷺ commanded her to wash for every prayer. When it became difficult for her, he ordered her to combine Dhuhr and Asr prayers with one washing, and between Maghrib and Isha prayers with one washing, and to wash for Fajr prayer.  

إِنَّمَا هِيَ سُهَيْلَةُ بِنْتُ سَهْلٍ وَإِنَّ رَسُولَ اللهِ ﷺ أَمَرَهَا بِالْغُسْلِ لِكُلِّ صَلَاةٍ فَلَمَّا شَقَّ ذَلِكَ عَلَيْهَا أَمَرَهَا أَنْ تَجْمَعَ الظُّهْرَ وَالْعَصْرَ بِغُسْلٍ وَاحِدٍ وَبَيْنَ الْمَغْرِبِ وَالْعِشَاءِ بِغُسْلٍ وَاحِدٍ وَأَنْ تَغْتَسِلَ لِلصُّبْحِ  

[Machine] Indeed, Sahla bint Suhail bin Amr was experiencing istihadah (prolonged non-menstrual bleeding), so she went to the Messenger of Allah ﷺ and asked him about it. He instructed her to perform ghusl (ritual bathing) after every prayer. When she found this difficult, he ordered her to combine the Dhuhr and Asr prayers with one ghusl, and the Maghrib and Isha prayers with another ghusl, and the Fajr prayer with another ghusl.  

إِنَّ سَهْلَةَ بِنْتَ سُهَيْلِ بْنِ عَمْرٍو اسْتُحِيضَتْ فَأَتَتْ رَسُولَ اللهِ ﷺ فَسَأَلَتْهُ عَنْ ذَلِكَ فَأَمَرَهَا بِالْغُسْلِ عِنْدَ كُلِّ صَلَاةٍ فَلَمَّا جَهَدَهَا ذَلِكَ أَمَرَهَا أَنْ تَجْمَعَ بَيْنَ الظُّهْرِ وَالْعَصْرِ بِغُسْلٍ وَالْمَغْرِبِ وَالْعِشَاءِ بِغُسْلٍ وَالصُّبْحَ بِغُسْلٍ