Ikrimah said: Umm Habibah daughter of Jahsh had a prolonged flow of blood. The Prophet ﷺ commanded her to refrain (from prayer) during her menstrual period; then she should wash and pray, if she sees anything (which renders ablution void) she should perform ablution and pray.
أَنَّ أُمَّ حَبِيبَةَ بِنْتَ جَحْشٍ اسْتُحِيضَتْ فَأَمَرَهَا النَّبِيُّ ﷺ أَنْ تَنْتَظِرَ أَيَّامَ أَقْرَائِهَا ثُمَّ تَغْتَسِلُ وَتُصَلِّي فَإِنْ رَأَتْ شَيْئًا مِنْ ذَلِكَ تَوَضَّأَتْ وَصَلَّتْ