4804 - وَ - سَأَلَهُ مُحَمَّدُ بْنُ مُسْلِمٍ عَنْ عِدَّةِ اَلْمُسْتَحَاضَةِ فَقَالَ "تَنْتَظِرُ قَدْرَ أَقْرَائِهَا فَتَزِيدُ يَوْماً أَوْ تَنْقُصُ يَوْماً فَإِنْ لَمْ تَحِضْ فَلْتَنْظُرْ إِلَى بَعْضِ نِسَائِهَا فَلْتَعْتَدَّ بِأَقْرَائِهَا".
Hadith.4804 - Muhammad ibn Muslim asked Imam 
about the waiting period of a mustahadah (a woman experiencing continuous bleeding).
Imam said: "She should wait for the duration of her usual menstrual cycles, adding a day or subtracting a day. If she does not menstruate, then she should look at the menstrual cycles of some of the women like her and observe her waiting period according to their cycles."
