[Machine] Fatimah bint Qais came to the Messenger of Allah ﷺ and said, "I am experiencing istihadah (non-menstrual bleeding)." He said, "That is not menstruation, rather it is a vein. So when the days of your regular menstruation come, then refrain from prayers. Afterward, bathe yourself and seek purification with a cloth and then perform prayers."  

جَاءَتْ فَاطِمَةُ بِنْتُ قَيْسٍ إِلَى رَسُولِ اللَّهِ ﷺ فَقَالَتْ إِنِّي أُسْتَحَاضُ قَالَ «لَيْسَ ذَاكَ بِالْحَيْضِ إِنَّمَا هُوَ عِرْقٌ لِتَقْعُدْ أَيَّامَ أَقْرَائِهَا ثُمَّ تَغْتَسِلْ ثُمَّ تَسْتَثْفِرْ بِثَوْبٍ وَتُصَلِّي»