[Machine] Fatimah bint Abi Hubaysh came to the Prophet ﷺ and said, "I am experiencing istihadah and I see blood." He instructed her to count the days of her menstrual cycle, and once she reaches the end of her cycle, to wash herself and perform ablution for every prayer. He said, "Indeed, it is only a vein from you."
أَنَّ فَاطِمَةَ بِنْتَ أَبِي حُبَيْشٍ أَتَتِ النَّبِيَّ ﷺ فَقَالَتْ إِنِّي أُسْتَحَاضُ وَأَرَى الدَّمَ فَأَمَرَهَا أَنْ تَقْعُدَ أَيَّامَ أَقْرَائِهَا فَإِذَا كَانَ عِنْدَ طُهْرِهَا اغْتَسَلَتْ ثُمَّ تَوَضَّأَتْ لِكُلِّ صَلَاةٍ وَقَالَ «إِنَّمَا هُوَ عِرْقٌ مِنْكِ»