أَخْبَرَنَا مُحَمَّدُ بْنُ يُوسُفَ ، عَنْ سُفْيَانَ ، عَنْ الْجَلْدِ بْنِ أَيُّوبَ ، عَنْ أَبِي إِيَاسٍ مُعَاوِيَةَ بْنِ قُرَّةَ ، عَنْ أَنَسِ بْنِ مَالِكٍ ، قَالَ :" الْحَيْضُ عَشْرَةٌ فَمَا زَادَ فَهِيَ مُسْتَحَاضَةٌ "

Muhammad ibn Yusuf informed us, on the authority of Sufyan, on the authority of Al-Jalad ibn Ayyub, on the authority of Abu Iyas Muawiyah ibn Qurra, on the authority of Anas ibn Malik, he said “There are ten menstrual cycles, and anything more is considered to be menstrual bleeding.”