"I said to the Prophet ﷺ that I was suffering from Istihadah. He said: 'Do not pray during the days of your period, then perform Ghusl and delay Zuhr and bring Maghrib and bring 'Isha' forward and pray them together, and perform Ghusl for Fajr." (Using translation from Nasāʾī 361)
سَأَلْتُ رَسُولَ اللهِ ﷺ لِحَمْنَةَ فَقُلْتُ إِنَّهَا مُسْتَحَاضَةٌ فَقَالَ لِتَجْلِسْ أَيَّامَ أَقْرَائِهَا ثُمَّ تَغْتَسِلْ وَتُؤَخِّرِ الظُّهْرَ وَتُعَجِّلِ الْعَصْرَ فَتَغْتَسِلْ وَتُصَلِّي وَتُؤَخِّرِ الْمَغْرِبَ وَتُعَجِّلِ الْعِشَاءَ وَتَغْتَسِلْ وَتُصَلِّيهِمَا وَتَغْتَسِلْ لِلْفَجْرِ وَرُوِيَ عَنْ أَسْمَاءَ بِنْتِ عُمَيْسٍ مِنْ وَجْهٍ آخَرَ