أَخْبَرَنَا مُحَمَّدُ بْنُ يُوسُفَ، حَدَّثَنَا سُفْيَانُ، عَنْ الرَّبِيعِ، عَنْ الْحَسَنِ، قَالَ: "الْحَيْضُ عَشْرَةٌ، فَمَا زَادَ فَهِيَ مُسْتَحَاضَةٌ" . .
Rabee’ narrated, Hasan (may Allah have mercy on him) said: The duration of menstruation is ten days; more than that, she will be considered mustahadah (experiencing abnormal bleeding).